Finding the Fourth Proportional to 12,417.57, 17,137.71 and 7,114.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,417.57 : 17,137.71 = 7,114.10 : x
2. Step 2: Convert to fraction form
   12,417.57/17,137.71 = 7,114.10/x
3. Step 3: Cross multiply
   12,417.57x = 17,137.71 × 7,114.10
4. Step 4: Simplify right side
   12,417.57x = 121,919,297.02
5. Step 5: Solve for x
   x = 121,919,297.02/12,417.57
6. Step 6: Final answer
   x = 9,818.29