Finding the Fourth Proportional to 249,516.86, 374,423.52 and 91,856.04

Step by Step Solution

1. Step 1: Write the proportion equation
   249,516.86 : 374,423.52 = 91,856.04 : x
2. Step 2: Convert to fraction form
   249,516.86/374,423.52 = 91,856.04/x
3. Step 3: Cross multiply
   249,516.86x = 374,423.52 × 91,856.04
4. Step 4: Simplify right side
   249,516.86x = 34,393,061,830.06
5. Step 5: Solve for x
   x = 34,393,061,830.06/249,516.86
6. Step 6: Final answer
   x = 137,838.63