Finding the Fourth Proportional to 12,617.01, 17,411.22 and 7,903.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,617.01 : 17,411.22 = 7,903.89 : x
2. Step 2: Convert to fraction form
   12,617.01/17,411.22 = 7,903.89/x
3. Step 3: Cross multiply
   12,617.01x = 17,411.22 × 7,903.89
4. Step 4: Simplify right side
   12,617.01x = 137,616,367.65
5. Step 5: Solve for x
   x = 137,616,367.65/12,617.01
6. Step 6: Final answer
   x = 10,907.21