Finding the Fourth Proportional to 63,702.64, 87,708.82 and 57,797.72

Step by Step Solution

1. Step 1: Write the proportion equation
   63,702.64 : 87,708.82 = 57,797.72 : x
2. Step 2: Convert to fraction form
   63,702.64/87,708.82 = 57,797.72/x
3. Step 3: Cross multiply
   63,702.64x = 87,708.82 × 57,797.72
4. Step 4: Simplify right side
   63,702.64x = 5,069,369,819.89
5. Step 5: Solve for x
   x = 5,069,369,819.89/63,702.64
6. Step 6: Final answer
   x = 79,578.65