Finding the Fourth Proportional to 10,017.36, 15,021.45 and 5,336.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,017.36 : 15,021.45 = 5,336.15 : x
2. Step 2: Convert to fraction form
   10,017.36/15,021.45 = 5,336.15/x
3. Step 3: Cross multiply
   10,017.36x = 15,021.45 × 5,336.15
4. Step 4: Simplify right side
   10,017.36x = 80,156,710.42
5. Step 5: Solve for x
   x = 80,156,710.42/10,017.36
6. Step 6: Final answer
   x = 8,001.78