Finding the Fourth Proportional to 90,083.60, 124,350.42 and 80,635.76

Step by Step Solution

1. Step 1: Write the proportion equation
   90,083.60 : 124,350.42 = 80,635.76 : x
2. Step 2: Convert to fraction form
   90,083.60/124,350.42 = 80,635.76/x
3. Step 3: Cross multiply
   90,083.60x = 124,350.42 × 80,635.76
4. Step 4: Simplify right side
   90,083.60x = 10,027,090,623.02
5. Step 5: Solve for x
   x = 10,027,090,623.02/90,083.60
6. Step 6: Final answer
   x = 111,308.72