Finding the Fourth Proportional to 11,423.30, 17,126.66 and 7,716.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,423.30 : 17,126.66 = 7,716.34 : x
2. Step 2: Convert to fraction form
   11,423.30/17,126.66 = 7,716.34/x
3. Step 3: Cross multiply
   11,423.30x = 17,126.66 × 7,716.34
4. Step 4: Simplify right side
   11,423.30x = 132,155,131.62
5. Step 5: Solve for x
   x = 132,155,131.62/11,423.30
6. Step 6: Final answer
   x = 11,568.91