Finding the Fourth Proportional to 410,400.57, 615,662.31 and 144,114.15

Step by Step Solution

1. Step 1: Write the proportion equation
   410,400.57 : 615,662.31 = 144,114.15 : x
2. Step 2: Convert to fraction form
   410,400.57/615,662.31 = 144,114.15/x
3. Step 3: Cross multiply
   410,400.57x = 615,662.31 × 144,114.15
4. Step 4: Simplify right side
   410,400.57x = 88,725,650,492.69
5. Step 5: Solve for x
   x = 88,725,650,492.69/410,400.57
6. Step 6: Final answer
   x = 216,192.81