Finding the Fourth Proportional to 10,391.16, 14,339.72 and 5,675.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,391.16 : 14,339.72 = 5,675.45 : x
2. Step 2: Convert to fraction form
   10,391.16/14,339.72 = 5,675.45/x
3. Step 3: Cross multiply
   10,391.16x = 14,339.72 × 5,675.45
4. Step 4: Simplify right side
   10,391.16x = 81,384,263.80
5. Step 5: Solve for x
   x = 81,384,263.80/10,391.16
6. Step 6: Final answer
   x = 7,832.07