Finding the Fourth Proportional to 99,751.86, 137,657.57 and 63,941.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99,751.86 : 137,657.57 = 63,941.94 : x
2. Step 2: Convert to fraction form
   99,751.86/137,657.57 = 63,941.94/x
3. Step 3: Cross multiply
   99,751.86x = 137,657.57 × 63,941.94
4. Step 4: Simplify right side
   99,751.86x = 8,802,092,081.49
5. Step 5: Solve for x
   x = 8,802,092,081.49/99,751.86
6. Step 6: Final answer
   x = 88,239.88