Finding the Fourth Proportional to 17,681.32, 26,519.82 and 7,291.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,681.32 : 26,519.82 = 7,291.72 : x
2. Step 2: Convert to fraction form
   17,681.32/26,519.82 = 7,291.72/x
3. Step 3: Cross multiply
   17,681.32x = 26,519.82 × 7,291.72
4. Step 4: Simplify right side
   17,681.32x = 193,375,101.89
5. Step 5: Solve for x
   x = 193,375,101.89/17,681.32
6. Step 6: Final answer
   x = 10,936.69