Finding the Fourth Proportional to 13,180.72, 18,190.20 and 7,593.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,180.72 : 18,190.20 = 7,593.52 : x
2. Step 2: Convert to fraction form
   13,180.72/18,190.20 = 7,593.52/x
3. Step 3: Cross multiply
   13,180.72x = 18,190.20 × 7,593.52
4. Step 4: Simplify right side
   13,180.72x = 138,127,647.50
5. Step 5: Solve for x
   x = 138,127,647.50/13,180.72
6. Step 6: Final answer
   x = 10,479.52