Finding the Fourth Proportional to 144,268.78, 216,407.56 and 49,497.63

Step by Step Solution

1. Step 1: Write the proportion equation
   144,268.78 : 216,407.56 = 49,497.63 : x
2. Step 2: Convert to fraction form
   144,268.78/216,407.56 = 49,497.63/x
3. Step 3: Cross multiply
   144,268.78x = 216,407.56 × 49,497.63
4. Step 4: Simplify right side
   144,268.78x = 10,711,661,778.52
5. Step 5: Solve for x
   x = 10,711,661,778.52/144,268.78
6. Step 6: Final answer
   x = 74,247.95