Finding the Fourth Proportional to 64,132.49, 88,527.53 and 57,406.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,132.49 : 88,527.53 = 57,406.25 : x
2. Step 2: Convert to fraction form
   64,132.49/88,527.53 = 57,406.25/x
3. Step 3: Cross multiply
   64,132.49x = 88,527.53 × 57,406.25
4. Step 4: Simplify right side
   64,132.49x = 5,082,033,883.90
5. Step 5: Solve for x
   x = 5,082,033,883.90/64,132.49
6. Step 6: Final answer
   x = 79,242.73