Finding the Fourth Proportional to 105,131.43, 157,492.89 and 93,350.79

Step by Step Solution

1. Step 1: Write the proportion equation
   105,131.43 : 157,492.89 = 93,350.79 : x
2. Step 2: Convert to fraction form
   105,131.43/157,492.89 = 93,350.79/x
3. Step 3: Cross multiply
   105,131.43x = 157,492.89 × 93,350.79
4. Step 4: Simplify right side
   105,131.43x = 14,702,085,700.88
5. Step 5: Solve for x
   x = 14,702,085,700.88/105,131.43
6. Step 6: Final answer
   x = 139,844.82