Finding the Fourth Proportional to 615,293.60, 849,105.27 and 339,651.56

Step by Step Solution

1. Step 1: Write the proportion equation
   615,293.60 : 849,105.27 = 339,651.56 : x
2. Step 2: Convert to fraction form
   615,293.60/849,105.27 = 339,651.56/x
3. Step 3: Cross multiply
   615,293.60x = 849,105.27 × 339,651.56
4. Step 4: Simplify right side
   615,293.60x = 288,399,925,314.20
5. Step 5: Solve for x
   x = 288,399,925,314.20/615,293.60
6. Step 6: Final answer
   x = 468,719.21