Finding the Fourth Proportional to 17,347.16, 23,938.88 and 9,389.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,347.16 : 23,938.88 = 9,389.20 : x
2. Step 2: Convert to fraction form
   17,347.16/23,938.88 = 9,389.20/x
3. Step 3: Cross multiply
   17,347.16x = 23,938.88 × 9,389.20
4. Step 4: Simplify right side
   17,347.16x = 224,766,932.10
5. Step 5: Solve for x
   x = 224,766,932.10/17,347.16
6. Step 6: Final answer
   x = 12,956.99