Finding the Fourth Proportional to 10,105.30, 15,165.15 and 4,266.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.30 : 15,165.15 = 4,266.10 : x
2. Step 2: Convert to fraction form
   10,105.30/15,165.15 = 4,266.10/x
3. Step 3: Cross multiply
   10,105.30x = 15,165.15 × 4,266.10
4. Step 4: Simplify right side
   10,105.30x = 64,696,046.42
5. Step 5: Solve for x
   x = 64,696,046.42/10,105.30
6. Step 6: Final answer
   x = 6,402.19