Finding the Fourth Proportional to 80,662.28, 120,903.72 and 60,876.68

Step by Step Solution

1. Step 1: Write the proportion equation
   80,662.28 : 120,903.72 = 60,876.68 : x
2. Step 2: Convert to fraction form
   80,662.28/120,903.72 = 60,876.68/x
3. Step 3: Cross multiply
   80,662.28x = 120,903.72 × 60,876.68
4. Step 4: Simplify right side
   80,662.28x = 7,360,217,073.25
5. Step 5: Solve for x
   x = 7,360,217,073.25/80,662.28
6. Step 6: Final answer
   x = 91,247.32