Finding the Fourth Proportional to 17,570.42, 24,247.45 and 9,612.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,570.42 : 24,247.45 = 9,612.78 : x
2. Step 2: Convert to fraction form
   17,570.42/24,247.45 = 9,612.78/x
3. Step 3: Cross multiply
   17,570.42x = 24,247.45 × 9,612.78
4. Step 4: Simplify right side
   17,570.42x = 233,085,323.50
5. Step 5: Solve for x
   x = 233,085,323.50/17,570.42
6. Step 6: Final answer
   x = 13,265.78