Finding the Fourth Proportional to 155,356.46, 231,900.52 and 133,311.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,356.46 : 231,900.52 = 133,311.50 : x
2. Step 2: Convert to fraction form
   155,356.46/231,900.52 = 133,311.50/x
3. Step 3: Cross multiply
   155,356.46x = 231,900.52 × 133,311.50
4. Step 4: Simplify right side
   155,356.46x = 30,915,004,679.20
5. Step 5: Solve for x
   x = 30,915,004,679.20/155,356.46
6. Step 6: Final answer
   x = 198,994.01