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Finding the Fourth Proportional to 56,597.40, 78,113.16 and 40,734.36

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Solution

The fourth proportional to 56,597.40, 78,113.16 and 40,734.36 is: 56,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,597.40 : 78,113.16 = 40,734.36 : x
  2. Step 2: Convert to fraction form
    56,597.40/78,113.16 = 40,734.36/x
  3. Step 3: Cross multiply
    56,597.40x = 78,113.16 × 40,734.36
  4. Step 4: Simplify right side
    56,597.40x = 3,181,889,580.18
  5. Step 5: Solve for x
    x = 3,181,889,580.18/56,597.40
  6. Step 6: Final answer
    x = 56,219.71

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