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Finding the Fourth Proportional to 107,428.96, 161,003.28 and 54,794.08

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Solution

The fourth proportional to 107,428.96, 161,003.28 and 54,794.08 is: 82,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,428.96 : 161,003.28 = 54,794.08 : x
  2. Step 2: Convert to fraction form
    107,428.96/161,003.28 = 54,794.08/x
  3. Step 3: Cross multiply
    107,428.96x = 161,003.28 × 54,794.08
  4. Step 4: Simplify right side
    107,428.96x = 8,822,026,604.58
  5. Step 5: Solve for x
    x = 8,822,026,604.58/107,428.96
  6. Step 6: Final answer
    x = 82,119.63

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