Finding the Fourth Proportional to 21,499.30, 32,234.23 and 10,948.90

Step by Step Solution

1. Step 1: Write the proportion equation
   21,499.30 : 32,234.23 = 10,948.90 : x
2. Step 2: Convert to fraction form
   21,499.30/32,234.23 = 10,948.90/x
3. Step 3: Cross multiply
   21,499.30x = 32,234.23 × 10,948.90
4. Step 4: Simplify right side
   21,499.30x = 352,929,252.89
5. Step 5: Solve for x
   x = 352,929,252.89/21,499.30
6. Step 6: Final answer
   x = 16,415.85