Finding the Fourth Proportional to 253,141.18, 349,401.86 and 157,591.15

Step by Step Solution

1. Step 1: Write the proportion equation
   253,141.18 : 349,401.86 = 157,591.15 : x
2. Step 2: Convert to fraction form
   253,141.18/349,401.86 = 157,591.15/x
3. Step 3: Cross multiply
   253,141.18x = 349,401.86 × 157,591.15
4. Step 4: Simplify right side
   253,141.18x = 55,062,640,141.58
5. Step 5: Solve for x
   x = 55,062,640,141.58/253,141.18
6. Step 6: Final answer
   x = 217,517.51