Finding the Fourth Proportional to 72,507.88, 108,738.78 and 49,283.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,507.88 : 108,738.78 = 49,283.56 : x
2. Step 2: Convert to fraction form
   72,507.88/108,738.78 = 49,283.56/x
3. Step 3: Cross multiply
   72,507.88x = 108,738.78 × 49,283.56
4. Step 4: Simplify right side
   72,507.88x = 5,359,034,188.46
5. Step 5: Solve for x
   x = 5,359,034,188.46/72,507.88
6. Step 6: Final answer
   x = 73,909.68