Finding the Fourth Proportional to 144,574.20, 216,807.37 and 49,777.61

Step by Step Solution

1. Step 1: Write the proportion equation
   144,574.20 : 216,807.37 = 49,777.61 : x
2. Step 2: Convert to fraction form
   144,574.20/216,807.37 = 49,777.61/x
3. Step 3: Cross multiply
   144,574.20x = 216,807.37 × 49,777.61
4. Step 4: Simplify right side
   144,574.20x = 10,792,151,500.50
5. Step 5: Solve for x
   x = 10,792,151,500.50/144,574.20
6. Step 6: Final answer
   x = 74,647.84