Finding the Fourth Proportional to 21,992.52, 30,352.98 and 17,312.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,992.52 : 30,352.98 = 17,312.04 : x
2. Step 2: Convert to fraction form
   21,992.52/30,352.98 = 17,312.04/x
3. Step 3: Cross multiply
   21,992.52x = 30,352.98 × 17,312.04
4. Step 4: Simplify right side
   21,992.52x = 525,472,003.88
5. Step 5: Solve for x
   x = 525,472,003.88/21,992.52
6. Step 6: Final answer
   x = 23,893.21