Finding the Fourth Proportional to 112,298.73, 154,969.97 and 64,550.85

Step by Step Solution

1. Step 1: Write the proportion equation
   112,298.73 : 154,969.97 = 64,550.85 : x
2. Step 2: Convert to fraction form
   112,298.73/154,969.97 = 64,550.85/x
3. Step 3: Cross multiply
   112,298.73x = 154,969.97 × 64,550.85
4. Step 4: Simplify right side
   112,298.73x = 10,003,443,287.97
5. Step 5: Solve for x
   x = 10,003,443,287.97/112,298.73
6. Step 6: Final answer
   x = 89,078.86