Finding the Fourth Proportional to 17,123.10, 25,684.29 and 7,889.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,123.10 : 25,684.29 = 7,889.10 : x
2. Step 2: Convert to fraction form
   17,123.10/25,684.29 = 7,889.10/x
3. Step 3: Cross multiply
   17,123.10x = 25,684.29 × 7,889.10
4. Step 4: Simplify right side
   17,123.10x = 202,625,932.24
5. Step 5: Solve for x
   x = 202,625,932.24/17,123.10
6. Step 6: Final answer
   x = 11,833.48