Finding the Fourth Proportional to 12,789.72, 17,649.88 and 7,483.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,789.72 : 17,649.88 = 7,483.52 : x
2. Step 2: Convert to fraction form
   12,789.72/17,649.88 = 7,483.52/x
3. Step 3: Cross multiply
   12,789.72x = 17,649.88 × 7,483.52
4. Step 4: Simplify right side
   12,789.72x = 132,083,255.39
5. Step 5: Solve for x
   x = 132,083,255.39/12,789.72
6. Step 6: Final answer
   x = 10,327.30