Finding the Fourth Proportional to 12,426.17, 17,147.60 and 7,119.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,426.17 : 17,147.60 = 7,119.96 : x
2. Step 2: Convert to fraction form
   12,426.17/17,147.60 = 7,119.96/x
3. Step 3: Cross multiply
   12,426.17x = 17,147.60 × 7,119.96
4. Step 4: Simplify right side
   12,426.17x = 122,090,152.89
5. Step 5: Solve for x
   x = 122,090,152.89/12,426.17
6. Step 6: Final answer
   x = 9,825.25