Finding the Fourth Proportional to 32,951.28, 45,493.72 and 21,640.84

Step by Step Solution

1. Step 1: Write the proportion equation
   32,951.28 : 45,493.72 = 21,640.84 : x
2. Step 2: Convert to fraction form
   32,951.28/45,493.72 = 21,640.84/x
3. Step 3: Cross multiply
   32,951.28x = 45,493.72 × 21,640.84
4. Step 4: Simplify right side
   32,951.28x = 984,522,315.52
5. Step 5: Solve for x
   x = 984,522,315.52/32,951.28
6. Step 6: Final answer
   x = 29,878.12