Finding the Fourth Proportional to 144,521.82, 216,728.87 and 49,725.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,521.82 : 216,728.87 = 49,725.50 : x
2. Step 2: Convert to fraction form
   144,521.82/216,728.87 = 49,725.50/x
3. Step 3: Cross multiply
   144,521.82x = 216,728.87 × 49,725.50
4. Step 4: Simplify right side
   144,521.82x = 10,776,950,092.91
5. Step 5: Solve for x
   x = 10,776,950,092.91/144,521.82
6. Step 6: Final answer
   x = 74,569.71