Finding the Fourth Proportional to 265,978.10, 398,634.51 and 132,895.82

Step by Step Solution

1. Step 1: Write the proportion equation
   265,978.10 : 398,634.51 = 132,895.82 : x
2. Step 2: Convert to fraction form
   265,978.10/398,634.51 = 132,895.82/x
3. Step 3: Cross multiply
   265,978.10x = 398,634.51 × 132,895.82
4. Step 4: Simplify right side
   265,978.10x = 52,976,860,086.75
5. Step 5: Solve for x
   x = 52,976,860,086.75/265,978.10
6. Step 6: Final answer
   x = 199,177.53