Finding the Fourth Proportional to 21,522.52, 32,061.84 and 20,869.68

Step by Step Solution

1. Step 1: Write the proportion equation
   21,522.52 : 32,061.84 = 20,869.68 : x
2. Step 2: Convert to fraction form
   21,522.52/32,061.84 = 20,869.68/x
3. Step 3: Cross multiply
   21,522.52x = 32,061.84 × 20,869.68
4. Step 4: Simplify right side
   21,522.52x = 669,120,341.01
5. Step 5: Solve for x
   x = 669,120,341.01/21,522.52
6. Step 6: Final answer
   x = 31,089.31