Finding the Fourth Proportional to 10,081.30, 15,138.15 and 7,327.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.30 : 15,138.15 = 7,327.30 : x
2. Step 2: Convert to fraction form
   10,081.30/15,138.15 = 7,327.30/x
3. Step 3: Cross multiply
   10,081.30x = 15,138.15 × 7,327.30
4. Step 4: Simplify right side
   10,081.30x = 110,921,766.50
5. Step 5: Solve for x
   x = 110,921,766.50/10,081.30
6. Step 6: Final answer
   x = 11,002.72