Finding the Fourth Proportional to 32,640.75, 45,046.06 and 18,498.15

Step by Step Solution

1. Step 1: Write the proportion equation
   32,640.75 : 45,046.06 = 18,498.15 : x
2. Step 2: Convert to fraction form
   32,640.75/45,046.06 = 18,498.15/x
3. Step 3: Cross multiply
   32,640.75x = 45,046.06 × 18,498.15
4. Step 4: Simplify right side
   32,640.75x = 833,268,728.54
5. Step 5: Solve for x
   x = 833,268,728.54/32,640.75
6. Step 6: Final answer
   x = 25,528.48