Finding the Fourth Proportional to 12,371.54, 17,072.55 and 7,066.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,371.54 : 17,072.55 = 7,066.22 : x
2. Step 2: Convert to fraction form
   12,371.54/17,072.55 = 7,066.22/x
3. Step 3: Cross multiply
   12,371.54x = 17,072.55 × 7,066.22
4. Step 4: Simplify right side
   12,371.54x = 120,638,308.90
5. Step 5: Solve for x
   x = 120,638,308.90/12,371.54
6. Step 6: Final answer
   x = 9,751.28