Finding the Fourth Proportional to 17,766.06, 26,653.50 and 5,286.03

Step by Step Solution

1. Step 1: Write the proportion equation
   17,766.06 : 26,653.50 = 5,286.03 : x
2. Step 2: Convert to fraction form
   17,766.06/26,653.50 = 5,286.03/x
3. Step 3: Cross multiply
   17,766.06x = 26,653.50 × 5,286.03
4. Step 4: Simplify right side
   17,766.06x = 140,891,200.61
5. Step 5: Solve for x
   x = 140,891,200.61/17,766.06
6. Step 6: Final answer
   x = 7,930.36