Finding the Fourth Proportional to 17,561.65, 26,343.69 and 5,081.17

Step by Step Solution

1. Step 1: Write the proportion equation
   17,561.65 : 26,343.69 = 5,081.17 : x
2. Step 2: Convert to fraction form
   17,561.65/26,343.69 = 5,081.17/x
3. Step 3: Cross multiply
   17,561.65x = 26,343.69 × 5,081.17
4. Step 4: Simplify right side
   17,561.65x = 133,856,767.32
5. Step 5: Solve for x
   x = 133,856,767.32/17,561.65
6. Step 6: Final answer
   x = 7,622.11