Finding the Fourth Proportional to 353,086.72, 487,261.76 and 191,943.04

Step by Step Solution

1. Step 1: Write the proportion equation
   353,086.72 : 487,261.76 = 191,943.04 : x
2. Step 2: Convert to fraction form
   353,086.72/487,261.76 = 191,943.04/x
3. Step 3: Cross multiply
   353,086.72x = 487,261.76 × 191,943.04
4. Step 4: Simplify right side
   353,086.72x = 93,526,503,490.15
5. Step 5: Solve for x
   x = 93,526,503,490.15/353,086.72
6. Step 6: Final answer
   x = 264,882.53