Finding the Fourth Proportional to 10,262.10, 15,389.55 and 5,330.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,262.10 : 15,389.55 = 5,330.10 : x
2. Step 2: Convert to fraction form
   10,262.10/15,389.55 = 5,330.10/x
3. Step 3: Cross multiply
   10,262.10x = 15,389.55 × 5,330.10
4. Step 4: Simplify right side
   10,262.10x = 82,027,840.46
5. Step 5: Solve for x
   x = 82,027,840.46/10,262.10
6. Step 6: Final answer
   x = 7,993.28