Finding the Fourth Proportional to 144,188.50, 216,288.72 and 49,483.78

Step by Step Solution

1. Step 1: Write the proportion equation
   144,188.50 : 216,288.72 = 49,483.78 : x
2. Step 2: Convert to fraction form
   144,188.50/216,288.72 = 49,483.78/x
3. Step 3: Cross multiply
   144,188.50x = 216,288.72 × 49,483.78
4. Step 4: Simplify right side
   144,188.50x = 10,702,783,436.96
5. Step 5: Solve for x
   x = 10,702,783,436.96/144,188.50
6. Step 6: Final answer
   x = 74,227.72