Finding the Fourth Proportional to 12,209.98, 16,853.10 and 7,175.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,209.98 : 16,853.10 = 7,175.82 : x
2. Step 2: Convert to fraction form
   12,209.98/16,853.10 = 7,175.82/x
3. Step 3: Cross multiply
   12,209.98x = 16,853.10 × 7,175.82
4. Step 4: Simplify right side
   12,209.98x = 120,934,848.33
5. Step 5: Solve for x
   x = 120,934,848.33/12,209.98
6. Step 6: Final answer
   x = 9,904.59