Finding the Fourth Proportional to 17,689, 24,407.58 and 12,984.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,689 : 24,407.58 = 12,984.52 : x
2. Step 2: Convert to fraction form
   17,689/24,407.58 = 12,984.52/x
3. Step 3: Cross multiply
   17,689x = 24,407.58 × 12,984.52
4. Step 4: Simplify right side
   17,689x = 316,920,710.66
5. Step 5: Solve for x
   x = 316,920,710.66/17,689
6. Step 6: Final answer
   x = 17,916.26