Finding the Fourth Proportional to 12,672.30, 17,488.89 and 7,367.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672.30 : 17,488.89 = 7,367.03 : x
2. Step 2: Convert to fraction form
   12,672.30/17,488.89 = 7,367.03/x
3. Step 3: Cross multiply
   12,672.30x = 17,488.89 × 7,367.03
4. Step 4: Simplify right side
   12,672.30x = 128,841,089.85
5. Step 5: Solve for x
   x = 128,841,089.85/12,672.30
6. Step 6: Final answer
   x = 10,167.14