Finding the Fourth Proportional to 10,287.52, 15,433.42 and 4,131.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287.52 : 15,433.42 = 4,131.52 : x
2. Step 2: Convert to fraction form
   10,287.52/15,433.42 = 4,131.52/x
3. Step 3: Cross multiply
   10,287.52x = 15,433.42 × 4,131.52
4. Step 4: Simplify right side
   10,287.52x = 63,763,483.40
5. Step 5: Solve for x
   x = 63,763,483.40/10,287.52
6. Step 6: Final answer
   x = 6,198.14