Finding the Fourth Proportional to 88,182.09, 121,624.61 and 61,311.15

Step by Step Solution

1. Step 1: Write the proportion equation
   88,182.09 : 121,624.61 = 61,311.15 : x
2. Step 2: Convert to fraction form
   88,182.09/121,624.61 = 61,311.15/x
3. Step 3: Cross multiply
   88,182.09x = 121,624.61 × 61,311.15
4. Step 4: Simplify right side
   88,182.09x = 7,456,944,400.85
5. Step 5: Solve for x
   x = 7,456,944,400.85/88,182.09
6. Step 6: Final answer
   x = 84,563.03