Finding the Fourth Proportional to 10,280.78, 14,188.73 and 5,804.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,280.78 : 14,188.73 = 5,804.72 : x
2. Step 2: Convert to fraction form
   10,280.78/14,188.73 = 5,804.72/x
3. Step 3: Cross multiply
   10,280.78x = 14,188.73 × 5,804.72
4. Step 4: Simplify right side
   10,280.78x = 82,361,604.81
5. Step 5: Solve for x
   x = 82,361,604.81/10,280.78
6. Step 6: Final answer
   x = 8,011.22