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Finding the Fourth Proportional to 58,416.80, 87,603.60 and 18,975.20

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Solution

The fourth proportional to 58,416.80, 87,603.60 and 18,975.20 is: 28,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,416.80 : 87,603.60 = 18,975.20 : x
  2. Step 2: Convert to fraction form
    58,416.80/87,603.60 = 18,975.20/x
  3. Step 3: Cross multiply
    58,416.80x = 87,603.60 × 18,975.20
  4. Step 4: Simplify right side
    58,416.80x = 1,662,295,830.72
  5. Step 5: Solve for x
    x = 1,662,295,830.72/58,416.80
  6. Step 6: Final answer
    x = 28,455.78

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