Finding the Fourth Proportional to 331,061.50, 496,690.17 and 190,920.70

Step by Step Solution

1. Step 1: Write the proportion equation
   331,061.50 : 496,690.17 = 190,920.70 : x
2. Step 2: Convert to fraction form
   331,061.50/496,690.17 = 190,920.70/x
3. Step 3: Cross multiply
   331,061.50x = 496,690.17 × 190,920.70
4. Step 4: Simplify right side
   331,061.50x = 94,828,434,939.52
5. Step 5: Solve for x
   x = 94,828,434,939.52/331,061.50
6. Step 6: Final answer
   x = 286,437.52