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Finding the Fourth Proportional to 57,327.40, 85,991.10 and 15,207.40

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Solution

The fourth proportional to 57,327.40, 85,991.10 and 15,207.40 is: 22,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,327.40 : 85,991.10 = 15,207.40 : x
  2. Step 2: Convert to fraction form
    57,327.40/85,991.10 = 15,207.40/x
  3. Step 3: Cross multiply
    57,327.40x = 85,991.10 × 15,207.40
  4. Step 4: Simplify right side
    57,327.40x = 1,307,701,054.14
  5. Step 5: Solve for x
    x = 1,307,701,054.14/57,327.40
  6. Step 6: Final answer
    x = 22,811.10

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