Finding the Fourth Proportional to 21,661.16, 32,492.27 and 10,566.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,661.16 : 32,492.27 = 10,566.32 : x
2. Step 2: Convert to fraction form
   21,661.16/32,492.27 = 10,566.32/x
3. Step 3: Cross multiply
   21,661.16x = 32,492.27 × 10,566.32
4. Step 4: Simplify right side
   21,661.16x = 343,323,586.30
5. Step 5: Solve for x
   x = 343,323,586.30/21,661.16
6. Step 6: Final answer
   x = 15,849.74