Finding the Fourth Proportional to 5,631.93, 8,454.78 and 5,173.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,631.93 : 8,454.78 = 5,173.47 : x
2. Step 2: Convert to fraction form
   5,631.93/8,454.78 = 5,173.47/x
3. Step 3: Cross multiply
   5,631.93x = 8,454.78 × 5,173.47
4. Step 4: Simplify right side
   5,631.93x = 43,740,550.69
5. Step 5: Solve for x
   x = 43,740,550.69/5,631.93
6. Step 6: Final answer
   x = 7,766.53