Finding the Fourth Proportional to 359,932.56, 496,685.16 and 216,738.96

Step by Step Solution

1. Step 1: Write the proportion equation
   359,932.56 : 496,685.16 = 216,738.96 : x
2. Step 2: Convert to fraction form
   359,932.56/496,685.16 = 216,738.96/x
3. Step 3: Cross multiply
   359,932.56x = 496,685.16 × 216,738.96
4. Step 4: Simplify right side
   359,932.56x = 107,651,025,025.83
5. Step 5: Solve for x
   x = 107,651,025,025.83/359,932.56
6. Step 6: Final answer
   x = 299,086.65