Finding the Fourth Proportional to 17,768.17, 26,649.82 and 5,290.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,768.17 : 26,649.82 = 5,290.12 : x
2. Step 2: Convert to fraction form
   17,768.17/26,649.82 = 5,290.12/x
3. Step 3: Cross multiply
   17,768.17x = 26,649.82 × 5,290.12
4. Step 4: Simplify right side
   17,768.17x = 140,980,745.78
5. Step 5: Solve for x
   x = 140,980,745.78/17,768.17
6. Step 6: Final answer
   x = 7,934.46