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Finding the Fourth Proportional to 18,873,549.36, 28,305,658.08 and 8,089,627.20

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Solution

The fourth proportional to 18,873,549.36, 28,305,658.08 and 8,089,627.20 is: 12,132,440.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873,549.36 : 28,305,658.08 = 8,089,627.20 : x
  2. Step 2: Convert to fraction form
    18,873,549.36/28,305,658.08 = 8,089,627.20/x
  3. Step 3: Cross multiply
    18,873,549.36x = 28,305,658.08 × 8,089,627.20
  4. Step 4: Simplify right side
    18,873,549.36x = 228,982,221,517,867.78
  5. Step 5: Solve for x
    x = 228,982,221,517,867.78/18,873,549.36
  6. Step 6: Final answer
    x = 12,132,440.86

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