Finding the Fourth Proportional to 256,941.92, 385,149.72 and 88,411.52

Step by Step Solution

1. Step 1: Write the proportion equation
   256,941.92 : 385,149.72 = 88,411.52 : x
2. Step 2: Convert to fraction form
   256,941.92/385,149.72 = 88,411.52/x
3. Step 3: Cross multiply
   256,941.92x = 385,149.72 × 88,411.52
4. Step 4: Simplify right side
   256,941.92x = 34,051,672,172.77
5. Step 5: Solve for x
   x = 34,051,672,172.77/256,941.92
6. Step 6: Final answer
   x = 132,526.73