Finding the Fourth Proportional to 80,580.83, 111,086.06 and 56,633.18

Step by Step Solution

1. Step 1: Write the proportion equation
   80,580.83 : 111,086.06 = 56,633.18 : x
2. Step 2: Convert to fraction form
   80,580.83/111,086.06 = 56,633.18/x
3. Step 3: Cross multiply
   80,580.83x = 111,086.06 × 56,633.18
4. Step 4: Simplify right side
   80,580.83x = 6,291,156,831.47
5. Step 5: Solve for x
   x = 6,291,156,831.47/80,580.83
6. Step 6: Final answer
   x = 78,072.62