Finding the Fourth Proportional to 10,389.54, 14,336.22 and 5,851.64

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389.54 : 14,336.22 = 5,851.64 : x
2. Step 2: Convert to fraction form
   10,389.54/14,336.22 = 5,851.64/x
3. Step 3: Cross multiply
   10,389.54x = 14,336.22 × 5,851.64
4. Step 4: Simplify right side
   10,389.54x = 83,890,326.72
5. Step 5: Solve for x
   x = 83,890,326.72/10,389.54
6. Step 6: Final answer
   x = 8,074.50