Finding the Fourth Proportional to 17,757.73, 24,514.88 and 12,972.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,757.73 : 24,514.88 = 12,972.30 : x
2. Step 2: Convert to fraction form
   17,757.73/24,514.88 = 12,972.30/x
3. Step 3: Cross multiply
   17,757.73x = 24,514.88 × 12,972.30
4. Step 4: Simplify right side
   17,757.73x = 318,014,312.96
5. Step 5: Solve for x
   x = 318,014,312.96/17,757.73
6. Step 6: Final answer
   x = 17,908.50