Finding the Fourth Proportional to 17,610.17, 26,405.53 and 7,229.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,610.17 : 26,405.53 = 7,229.21 : x
2. Step 2: Convert to fraction form
   17,610.17/26,405.53 = 7,229.21/x
3. Step 3: Cross multiply
   17,610.17x = 26,405.53 × 7,229.21
4. Step 4: Simplify right side
   17,610.17x = 190,890,971.43
5. Step 5: Solve for x
   x = 190,890,971.43/17,610.17
6. Step 6: Final answer
   x = 10,839.82