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Finding the Fourth Proportional to 76,896.40, 115,344.60 and 41,904.40

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Solution

The fourth proportional to 76,896.40, 115,344.60 and 41,904.40 is: 62,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,896.40 : 115,344.60 = 41,904.40 : x
  2. Step 2: Convert to fraction form
    76,896.40/115,344.60 = 41,904.40/x
  3. Step 3: Cross multiply
    76,896.40x = 115,344.60 × 41,904.40
  4. Step 4: Simplify right side
    76,896.40x = 4,833,446,256.24
  5. Step 5: Solve for x
    x = 4,833,446,256.24/76,896.40
  6. Step 6: Final answer
    x = 62,856.60

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