Finding the Fourth Proportional to 32,639.32, 45,039.72 and 18,494.38

Step by Step Solution

1. Step 1: Write the proportion equation
   32,639.32 : 45,039.72 = 18,494.38 : x
2. Step 2: Convert to fraction form
   32,639.32/45,039.72 = 18,494.38/x
3. Step 3: Cross multiply
   32,639.32x = 45,039.72 × 18,494.38
4. Step 4: Simplify right side
   32,639.32x = 832,981,696.77
5. Step 5: Solve for x
   x = 832,981,696.77/32,639.32
6. Step 6: Final answer
   x = 25,520.80