Finding the Fourth Proportional to 64,073.72, 88,463.32 and 57,347.69

Step by Step Solution

1. Step 1: Write the proportion equation
   64,073.72 : 88,463.32 = 57,347.69 : x
2. Step 2: Convert to fraction form
   64,073.72/88,463.32 = 57,347.69/x
3. Step 3: Cross multiply
   64,073.72x = 88,463.32 × 57,347.69
4. Step 4: Simplify right side
   64,073.72x = 5,073,166,466.04
5. Step 5: Solve for x
   x = 5,073,166,466.04/64,073.72
6. Step 6: Final answer
   x = 79,177.02