Finding the Fourth Proportional to 21,457.34, 32,193 and 10,365.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,457.34 : 32,193 = 10,365.30 : x
2. Step 2: Convert to fraction form
   21,457.34/32,193 = 10,365.30/x
3. Step 3: Cross multiply
   21,457.34x = 32,193 × 10,365.30
4. Step 4: Simplify right side
   21,457.34x = 333,690,102.90
5. Step 5: Solve for x
   x = 333,690,102.90/21,457.34
6. Step 6: Final answer
   x = 15,551.33