Finding the Fourth Proportional to 139,363.50, 192,401.40 and 91,755.24

Step by Step Solution

1. Step 1: Write the proportion equation
   139,363.50 : 192,401.40 = 91,755.24 : x
2. Step 2: Convert to fraction form
   139,363.50/192,401.40 = 91,755.24/x
3. Step 3: Cross multiply
   139,363.50x = 192,401.40 × 91,755.24
4. Step 4: Simplify right side
   139,363.50x = 17,653,836,633.34
5. Step 5: Solve for x
   x = 17,653,836,633.34/139,363.50
6. Step 6: Final answer
   x = 126,674.75