Finding the Fourth Proportional to 17,715.75, 26,576.89 and 7,328.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,715.75 : 26,576.89 = 7,328.31 : x
2. Step 2: Convert to fraction form
   17,715.75/26,576.89 = 7,328.31/x
3. Step 3: Cross multiply
   17,715.75x = 26,576.89 × 7,328.31
4. Step 4: Simplify right side
   17,715.75x = 194,763,688.76
5. Step 5: Solve for x
   x = 194,763,688.76/17,715.75
6. Step 6: Final answer
   x = 10,993.82