Finding the Fourth Proportional to 17,648.72, 24,355.44 and 9,690.80

Step by Step Solution

1. Step 1: Write the proportion equation
   17,648.72 : 24,355.44 = 9,690.80 : x
2. Step 2: Convert to fraction form
   17,648.72/24,355.44 = 9,690.80/x
3. Step 3: Cross multiply
   17,648.72x = 24,355.44 × 9,690.80
4. Step 4: Simplify right side
   17,648.72x = 236,023,697.95
5. Step 5: Solve for x
   x = 236,023,697.95/17,648.72
6. Step 6: Final answer
   x = 13,373.42