Finding the Fourth Proportional to 71,441.87, 98,569.82 and 56,287.49

Step by Step Solution

1. Step 1: Write the proportion equation
   71,441.87 : 98,569.82 = 56,287.49 : x
2. Step 2: Convert to fraction form
   71,441.87/98,569.82 = 56,287.49/x
3. Step 3: Cross multiply
   71,441.87x = 98,569.82 × 56,287.49
4. Step 4: Simplify right side
   71,441.87x = 5,548,247,405.42
5. Step 5: Solve for x
   x = 5,548,247,405.42/71,441.87
6. Step 6: Final answer
   x = 77,661.01