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Finding the Fourth Proportional to 38,127.78, 57,190.86 and 10,425.78

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Solution

The fourth proportional to 38,127.78, 57,190.86 and 10,425.78 is: 15,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,127.78 : 57,190.86 = 10,425.78 : x
  2. Step 2: Convert to fraction form
    38,127.78/57,190.86 = 10,425.78/x
  3. Step 3: Cross multiply
    38,127.78x = 57,190.86 × 10,425.78
  4. Step 4: Simplify right side
    38,127.78x = 596,259,324.37
  5. Step 5: Solve for x
    x = 596,259,324.37/38,127.78
  6. Step 6: Final answer
    x = 15,638.45

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