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Finding the Fourth Proportional to 39,918.92, 59,879.46 and 9,931.95

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Solution

The fourth proportional to 39,918.92, 59,879.46 and 9,931.95 is: 14,898.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.92 : 59,879.46 = 9,931.95 : x
  2. Step 2: Convert to fraction form
    39,918.92/59,879.46 = 9,931.95/x
  3. Step 3: Cross multiply
    39,918.92x = 59,879.46 × 9,931.95
  4. Step 4: Simplify right side
    39,918.92x = 594,719,802.75
  5. Step 5: Solve for x
    x = 594,719,802.75/39,918.92
  6. Step 6: Final answer
    x = 14,898.19

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