Finding the Fourth Proportional to 79,589.79, 109,831.59 and 43,779.78

Step by Step Solution

1. Step 1: Write the proportion equation
   79,589.79 : 109,831.59 = 43,779.78 : x
2. Step 2: Convert to fraction form
   79,589.79/109,831.59 = 43,779.78/x
3. Step 3: Cross multiply
   79,589.79x = 109,831.59 × 43,779.78
4. Step 4: Simplify right side
   79,589.79x = 4,808,402,847.25
5. Step 5: Solve for x
   x = 4,808,402,847.25/79,589.79
6. Step 6: Final answer
   x = 60,414.82