Finding the Fourth Proportional to 17,665.69, 26,491.56 and 7,798

Step by Step Solution

1. Step 1: Write the proportion equation
   17,665.69 : 26,491.56 = 7,798 : x
2. Step 2: Convert to fraction form
   17,665.69/26,491.56 = 7,798/x
3. Step 3: Cross multiply
   17,665.69x = 26,491.56 × 7,798
4. Step 4: Simplify right side
   17,665.69x = 206,581,184.88
5. Step 5: Solve for x
   x = 206,581,184.88/17,665.69
6. Step 6: Final answer
   x = 11,693.92