Finding the Fourth Proportional to 63,697.62, 87,701.94 and 57,792.72

Step by Step Solution

1. Step 1: Write the proportion equation
   63,697.62 : 87,701.94 = 57,792.72 : x
2. Step 2: Convert to fraction form
   63,697.62/87,701.94 = 57,792.72/x
3. Step 3: Cross multiply
   63,697.62x = 87,701.94 × 57,792.72
4. Step 4: Simplify right side
   63,697.62x = 5,068,533,661.88
5. Step 5: Solve for x
   x = 5,068,533,661.88/63,697.62
6. Step 6: Final answer
   x = 79,571.79