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Finding the Fourth Proportional to 57,904.40, 86,856.60 and 57,029.60

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Solution

The fourth proportional to 57,904.40, 86,856.60 and 57,029.60 is: 85,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,904.40 : 86,856.60 = 57,029.60 : x
  2. Step 2: Convert to fraction form
    57,904.40/86,856.60 = 57,029.60/x
  3. Step 3: Cross multiply
    57,904.40x = 86,856.60 × 57,029.60
  4. Step 4: Simplify right side
    57,904.40x = 4,953,397,155.36
  5. Step 5: Solve for x
    x = 4,953,397,155.36/57,904.40
  6. Step 6: Final answer
    x = 85,544.40

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