Finding the Fourth Proportional to 359,932.47, 496,697.30 and 198,784.05

Step by Step Solution

1. Step 1: Write the proportion equation
   359,932.47 : 496,697.30 = 198,784.05 : x
2. Step 2: Convert to fraction form
   359,932.47/496,697.30 = 198,784.05/x
3. Step 3: Cross multiply
   359,932.47x = 496,697.30 × 198,784.05
4. Step 4: Simplify right side
   359,932.47x = 98,735,499,924.14
5. Step 5: Solve for x
   x = 98,735,499,924.14/359,932.47
6. Step 6: Final answer
   x = 274,316.73