Finding the Fourth Proportional to 267,444.56, 398,809.72 and 265,046.15

Step by Step Solution

1. Step 1: Write the proportion equation
   267,444.56 : 398,809.72 = 265,046.15 : x
2. Step 2: Convert to fraction form
   267,444.56/398,809.72 = 265,046.15/x
3. Step 3: Cross multiply
   267,444.56x = 398,809.72 × 265,046.15
4. Step 4: Simplify right side
   267,444.56x = 105,702,980,868.58
5. Step 5: Solve for x
   x = 105,702,980,868.58/267,444.56
6. Step 6: Final answer
   x = 395,233.24