Finding the Fourth Proportional to 12,417.50, 17,131.29 and 7,109.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,417.50 : 17,131.29 = 7,109.46 : x
2. Step 2: Convert to fraction form
   12,417.50/17,131.29 = 7,109.46/x
3. Step 3: Cross multiply
   12,417.50x = 17,131.29 × 7,109.46
4. Step 4: Simplify right side
   12,417.50x = 121,794,221.00
5. Step 5: Solve for x
   x = 121,794,221.00/12,417.50
6. Step 6: Final answer
   x = 9,808.27