Finding the Fourth Proportional to 12,447.98, 17,175.20 and 7,069.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,447.98 : 17,175.20 = 7,069.22 : x
2. Step 2: Convert to fraction form
   12,447.98/17,175.20 = 7,069.22/x
3. Step 3: Cross multiply
   12,447.98x = 17,175.20 × 7,069.22
4. Step 4: Simplify right side
   12,447.98x = 121,415,267.34
5. Step 5: Solve for x
   x = 121,415,267.34/12,447.98
6. Step 6: Final answer
   x = 9,753.81