Finding the Fourth Proportional to 359,557.32, 496,188.72 and 198,412.32

Step by Step Solution

1. Step 1: Write the proportion equation
   359,557.32 : 496,188.72 = 198,412.32 : x
2. Step 2: Convert to fraction form
   359,557.32/496,188.72 = 198,412.32/x
3. Step 3: Cross multiply
   359,557.32x = 496,188.72 × 198,412.32
4. Step 4: Simplify right side
   359,557.32x = 98,449,955,093.03
5. Step 5: Solve for x
   x = 98,449,955,093.03/359,557.32
6. Step 6: Final answer
   x = 273,808.79