Finding the Fourth Proportional to 359,815.59, 496,536.04 and 198,667.17

Step by Step Solution

1. Step 1: Write the proportion equation
   359,815.59 : 496,536.04 = 198,667.17 : x
2. Step 2: Convert to fraction form
   359,815.59/496,536.04 = 198,667.17/x
3. Step 3: Cross multiply
   359,815.59x = 496,536.04 × 198,667.17
4. Step 4: Simplify right side
   359,815.59x = 98,645,409,869.81
5. Step 5: Solve for x
   x = 98,645,409,869.81/359,815.59
6. Step 6: Final answer
   x = 274,155.46