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Finding the Fourth Proportional to 18,993.22, 28,493.63 and 5,845.09

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Solution

The fourth proportional to 18,993.22, 28,493.63 and 5,845.09 is: 8,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.22 : 28,493.63 = 5,845.09 : x
  2. Step 2: Convert to fraction form
    18,993.22/28,493.63 = 5,845.09/x
  3. Step 3: Cross multiply
    18,993.22x = 28,493.63 × 5,845.09
  4. Step 4: Simplify right side
    18,993.22x = 166,547,831.78
  5. Step 5: Solve for x
    x = 166,547,831.78/18,993.22
  6. Step 6: Final answer
    x = 8,768.80

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