Finding the Fourth Proportional to 17,191.74, 23,723.37 and 10,117.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,191.74 : 23,723.37 = 10,117.20 : x
2. Step 2: Convert to fraction form
   17,191.74/23,723.37 = 10,117.20/x
3. Step 3: Cross multiply
   17,191.74x = 23,723.37 × 10,117.20
4. Step 4: Simplify right side
   17,191.74x = 240,014,078.96
5. Step 5: Solve for x
   x = 240,014,078.96/17,191.74
6. Step 6: Final answer
   x = 13,961.01