Finding the Fourth Proportional to 17,642.38, 26,473.96 and 7,117.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,642.38 : 26,473.96 = 7,117.42 : x
2. Step 2: Convert to fraction form
   17,642.38/26,473.96 = 7,117.42/x
3. Step 3: Cross multiply
   17,642.38x = 26,473.96 × 7,117.42
4. Step 4: Simplify right side
   17,642.38x = 188,426,292.38
5. Step 5: Solve for x
   x = 188,426,292.38/17,642.38
6. Step 6: Final answer
   x = 10,680.32