Finding the Fourth Proportional to 32,641.59, 48,964.98 and 13,921.79

Step by Step Solution

1. Step 1: Write the proportion equation
   32,641.59 : 48,964.98 = 13,921.79 : x
2. Step 2: Convert to fraction form
   32,641.59/48,964.98 = 13,921.79/x
3. Step 3: Cross multiply
   32,641.59x = 48,964.98 × 13,921.79
4. Step 4: Simplify right side
   32,641.59x = 681,680,168.91
5. Step 5: Solve for x
   x = 681,680,168.91/32,641.59
6. Step 6: Final answer
   x = 20,883.79