Finding the Fourth Proportional to 21,643.41, 32,445.52 and 8,492.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,643.41 : 32,445.52 = 8,492.25 : x
2. Step 2: Convert to fraction form
   21,643.41/32,445.52 = 8,492.25/x
3. Step 3: Cross multiply
   21,643.41x = 32,445.52 × 8,492.25
4. Step 4: Simplify right side
   21,643.41x = 275,535,467.22
5. Step 5: Solve for x
   x = 275,535,467.22/21,643.41
6. Step 6: Final answer
   x = 12,730.69