Finding the Fourth Proportional to 17,759.81, 26,645.04 and 5,280.27

Step by Step Solution

1. Step 1: Write the proportion equation
   17,759.81 : 26,645.04 = 5,280.27 : x
2. Step 2: Convert to fraction form
   17,759.81/26,645.04 = 5,280.27/x
3. Step 3: Cross multiply
   17,759.81x = 26,645.04 × 5,280.27
4. Step 4: Simplify right side
   17,759.81x = 140,693,005.36
5. Step 5: Solve for x
   x = 140,693,005.36/17,759.81
6. Step 6: Final answer
   x = 7,921.99