Finding the Fourth Proportional to 100,766.22, 139,042.71 and 60,471.42

Step by Step Solution

1. Step 1: Write the proportion equation
   100,766.22 : 139,042.71 = 60,471.42 : x
2. Step 2: Convert to fraction form
   100,766.22/139,042.71 = 60,471.42/x
3. Step 3: Cross multiply
   100,766.22x = 139,042.71 × 60,471.42
4. Step 4: Simplify right side
   100,766.22x = 8,408,110,114.35
5. Step 5: Solve for x
   x = 8,408,110,114.35/100,766.22
6. Step 6: Final answer
   x = 83,441.75