Finding the Fourth Proportional to 72,693.45, 108,865.21 and 49,248.81

Step by Step Solution

1. Step 1: Write the proportion equation
   72,693.45 : 108,865.21 = 49,248.81 : x
2. Step 2: Convert to fraction form
   72,693.45/108,865.21 = 49,248.81/x
3. Step 3: Cross multiply
   72,693.45x = 108,865.21 × 49,248.81
4. Step 4: Simplify right side
   72,693.45x = 5,361,482,042.90
5. Step 5: Solve for x
   x = 5,361,482,042.90/72,693.45
6. Step 6: Final answer
   x = 73,754.68