Finding the Fourth Proportional to 17,143.17, 25,699.88 and 7,648.35

Step by Step Solution

1. Step 1: Write the proportion equation
   17,143.17 : 25,699.88 = 7,648.35 : x
2. Step 2: Convert to fraction form
   17,143.17/25,699.88 = 7,648.35/x
3. Step 3: Cross multiply
   17,143.17x = 25,699.88 × 7,648.35
4. Step 4: Simplify right side
   17,143.17x = 196,561,696.32
5. Step 5: Solve for x
   x = 196,561,696.32/17,143.17
6. Step 6: Final answer
   x = 11,465.89