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Finding the Fourth Proportional to 57,771.03, 86,688.57 and 28,189.11

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Solution

The fourth proportional to 57,771.03, 86,688.57 and 28,189.11 is: 42,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,771.03 : 86,688.57 = 28,189.11 : x
  2. Step 2: Convert to fraction form
    57,771.03/86,688.57 = 28,189.11/x
  3. Step 3: Cross multiply
    57,771.03x = 86,688.57 × 28,189.11
  4. Step 4: Simplify right side
    57,771.03x = 2,443,673,635.47
  5. Step 5: Solve for x
    x = 2,443,673,635.47/57,771.03
  6. Step 6: Final answer
    x = 42,299.29

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