Finding the Fourth Proportional to 17,200.70, 23,738.32 and 9,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,200.70 : 23,738.32 = 9,648.72 : x
2. Step 2: Convert to fraction form
   17,200.70/23,738.32 = 9,648.72/x
3. Step 3: Cross multiply
   17,200.70x = 23,738.32 × 9,648.72
4. Step 4: Simplify right side
   17,200.70x = 229,044,402.95
5. Step 5: Solve for x
   x = 229,044,402.95/17,200.70
6. Step 6: Final answer
   x = 13,315.99