Finding the Fourth Proportional to 17,404.55, 26,080.91 and 9,997.91

Step by Step Solution

1. Step 1: Write the proportion equation
   17,404.55 : 26,080.91 = 9,997.91 : x
2. Step 2: Convert to fraction form
   17,404.55/26,080.91 = 9,997.91/x
3. Step 3: Cross multiply
   17,404.55x = 26,080.91 × 9,997.91
4. Step 4: Simplify right side
   17,404.55x = 260,754,540.91
5. Step 5: Solve for x
   x = 260,754,540.91/17,404.55
6. Step 6: Final answer
   x = 14,981.98