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Finding the Fourth Proportional to 49,899.33, 74,850.09 and 12,458.97

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Solution

The fourth proportional to 49,899.33, 74,850.09 and 12,458.97 is: 18,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,899.33 : 74,850.09 = 12,458.97 : x
  2. Step 2: Convert to fraction form
    49,899.33/74,850.09 = 12,458.97/x
  3. Step 3: Cross multiply
    49,899.33x = 74,850.09 × 12,458.97
  4. Step 4: Simplify right side
    49,899.33x = 932,555,025.81
  5. Step 5: Solve for x
    x = 932,555,025.81/49,899.33
  6. Step 6: Final answer
    x = 18,688.73

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