Finding the Fourth Proportional to 10,443.91, 15,661.08 and 5,762.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.91 : 15,661.08 = 5,762.36 : x
2. Step 2: Convert to fraction form
   10,443.91/15,661.08 = 5,762.36/x
3. Step 3: Cross multiply
   10,443.91x = 15,661.08 × 5,762.36
4. Step 4: Simplify right side
   10,443.91x = 90,244,780.95
5. Step 5: Solve for x
   x = 90,244,780.95/10,443.91
6. Step 6: Final answer
   x = 8,640.90