Finding the Fourth Proportional to 32,521.76, 48,781.52 and 13,789.72

Step by Step Solution

1. Step 1: Write the proportion equation
   32,521.76 : 48,781.52 = 13,789.72 : x
2. Step 2: Convert to fraction form
   32,521.76/48,781.52 = 13,789.72/x
3. Step 3: Cross multiply
   32,521.76x = 48,781.52 × 13,789.72
4. Step 4: Simplify right side
   32,521.76x = 672,683,501.97
5. Step 5: Solve for x
   x = 672,683,501.97/32,521.76
6. Step 6: Final answer
   x = 20,684.11