Finding the Fourth Proportional to 108,687.54, 149,831.33 and 76,323.59

Step by Step Solution

1. Step 1: Write the proportion equation
   108,687.54 : 149,831.33 = 76,323.59 : x
2. Step 2: Convert to fraction form
   108,687.54/149,831.33 = 76,323.59/x
3. Step 3: Cross multiply
   108,687.54x = 149,831.33 × 76,323.59
4. Step 4: Simplify right side
   108,687.54x = 11,435,663,869.30
5. Step 5: Solve for x
   x = 11,435,663,869.30/108,687.54
6. Step 6: Final answer
   x = 105,215.96