Finding the Fourth Proportional to 144,310.50, 216,468.99 and 49,540.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,310.50 : 216,468.99 = 49,540.50 : x
2. Step 2: Convert to fraction form
   144,310.50/216,468.99 = 49,540.50/x
3. Step 3: Cross multiply
   144,310.50x = 216,468.99 × 49,540.50
4. Step 4: Simplify right side
   144,310.50x = 10,723,981,999.10
5. Step 5: Solve for x
   x = 10,723,981,999.10/144,310.50
6. Step 6: Final answer
   x = 74,311.86