Finding the Fourth Proportional to 12,422.86, 17,144.14 and 7,117.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,422.86 : 17,144.14 = 7,117.69 : x
2. Step 2: Convert to fraction form
   12,422.86/17,144.14 = 7,117.69/x
3. Step 3: Cross multiply
   12,422.86x = 17,144.14 × 7,117.69
4. Step 4: Simplify right side
   12,422.86x = 122,026,588.12
5. Step 5: Solve for x
   x = 122,026,588.12/12,422.86
6. Step 6: Final answer
   x = 9,822.75