Finding the Fourth Proportional to 17,109.32, 25,672.17 and 8,339.45

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.32 : 25,672.17 = 8,339.45 : x
2. Step 2: Convert to fraction form
   17,109.32/25,672.17 = 8,339.45/x
3. Step 3: Cross multiply
   17,109.32x = 25,672.17 × 8,339.45
4. Step 4: Simplify right side
   17,109.32x = 214,091,649.75
5. Step 5: Solve for x
   x = 214,091,649.75/17,109.32
6. Step 6: Final answer
   x = 12,513.16