Finding the Fourth Proportional to 12,422.22, 17,142.39 and 6,971.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,422.22 : 17,142.39 = 6,971.10 : x
2. Step 2: Convert to fraction form
   12,422.22/17,142.39 = 6,971.10/x
3. Step 3: Cross multiply
   12,422.22x = 17,142.39 × 6,971.10
4. Step 4: Simplify right side
   12,422.22x = 119,501,314.93
5. Step 5: Solve for x
   x = 119,501,314.93/12,422.22
6. Step 6: Final answer
   x = 9,619.96