Finding the Fourth Proportional to 17,117.84, 25,665.78 and 7,129.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,117.84 : 25,665.78 = 7,129.52 : x
2. Step 2: Convert to fraction form
   17,117.84/25,665.78 = 7,129.52/x
3. Step 3: Cross multiply
   17,117.84x = 25,665.78 × 7,129.52
4. Step 4: Simplify right side
   17,117.84x = 182,984,691.83
5. Step 5: Solve for x
   x = 182,984,691.83/17,117.84
6. Step 6: Final answer
   x = 10,689.71