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Finding the Fourth Proportional to 129,218.54, 193,827.82 and 40,478.96

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Solution

The fourth proportional to 129,218.54, 193,827.82 and 40,478.96 is: 60,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,218.54 : 193,827.82 = 40,478.96 : x
  2. Step 2: Convert to fraction form
    129,218.54/193,827.82 = 40,478.96/x
  3. Step 3: Cross multiply
    129,218.54x = 193,827.82 × 40,478.96
  4. Step 4: Simplify right side
    129,218.54x = 7,845,947,502.33
  5. Step 5: Solve for x
    x = 7,845,947,502.33/129,218.54
  6. Step 6: Final answer
    x = 60,718.44

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