Finding the Fourth Proportional to 10,103.38, 15,162.96 and 7,005.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.38 : 15,162.96 = 7,005.20 : x
2. Step 2: Convert to fraction form
   10,103.38/15,162.96 = 7,005.20/x
3. Step 3: Cross multiply
   10,103.38x = 15,162.96 × 7,005.20
4. Step 4: Simplify right side
   10,103.38x = 106,219,645.78
5. Step 5: Solve for x
   x = 106,219,645.78/10,103.38
6. Step 6: Final answer
   x = 10,513.28