Finding the Fourth Proportional to 78,831.56, 108,789.86 and 43,023.87

Step by Step Solution

1. Step 1: Write the proportion equation
   78,831.56 : 108,789.86 = 43,023.87 : x
2. Step 2: Convert to fraction form
   78,831.56/108,789.86 = 43,023.87/x
3. Step 3: Cross multiply
   78,831.56x = 108,789.86 × 43,023.87
4. Step 4: Simplify right side
   78,831.56x = 4,680,560,901.52
5. Step 5: Solve for x
   x = 4,680,560,901.52/78,831.56
6. Step 6: Final answer
   x = 59,374.20