Finding the Fourth Proportional to 71,436.69, 98,562.72 and 56,282.40

Step by Step Solution

1. Step 1: Write the proportion equation
   71,436.69 : 98,562.72 = 56,282.40 : x
2. Step 2: Convert to fraction form
   71,436.69/98,562.72 = 56,282.40/x
3. Step 3: Cross multiply
   71,436.69x = 98,562.72 × 56,282.40
4. Step 4: Simplify right side
   71,436.69x = 5,547,346,432.13
5. Step 5: Solve for x
   x = 5,547,346,432.13/71,436.69
6. Step 6: Final answer
   x = 77,654.02