Finding the Fourth Proportional to 17,760.50, 26,645.97 and 5,280.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,760.50 : 26,645.97 = 5,280.62 : x
2. Step 2: Convert to fraction form
   17,760.50/26,645.97 = 5,280.62/x
3. Step 3: Cross multiply
   17,760.50x = 26,645.97 × 5,280.62
4. Step 4: Simplify right side
   17,760.50x = 140,707,242.10
5. Step 5: Solve for x
   x = 140,707,242.10/17,760.50
6. Step 6: Final answer
   x = 7,922.48