Finding the Fourth Proportional to 17,098.74, 23,609.61 and 13,113.54

Step by Step Solution

1. Step 1: Write the proportion equation
   17,098.74 : 23,609.61 = 13,113.54 : x
2. Step 2: Convert to fraction form
   17,098.74/23,609.61 = 13,113.54/x
3. Step 3: Cross multiply
   17,098.74x = 23,609.61 × 13,113.54
4. Step 4: Simplify right side
   17,098.74x = 309,605,565.12
5. Step 5: Solve for x
   x = 309,605,565.12/17,098.74
6. Step 6: Final answer
   x = 18,106.92