Finding the Fourth Proportional to 63,990.78, 88,309.20 and 35,695.86

Step by Step Solution

1. Step 1: Write the proportion equation
   63,990.78 : 88,309.20 = 35,695.86 : x
2. Step 2: Convert to fraction form
   63,990.78/88,309.20 = 35,695.86/x
3. Step 3: Cross multiply
   63,990.78x = 88,309.20 × 35,695.86
4. Step 4: Simplify right side
   63,990.78x = 3,152,272,839.91
5. Step 5: Solve for x
   x = 3,152,272,839.91/63,990.78
6. Step 6: Final answer
   x = 49,261.36