Finding the Fourth Proportional to 5,308.72, 7,320.98 and 4,047.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,308.72 : 7,320.98 = 4,047.54 : x
2. Step 2: Convert to fraction form
   5,308.72/7,320.98 = 4,047.54/x
3. Step 3: Cross multiply
   5,308.72x = 7,320.98 × 4,047.54
4. Step 4: Simplify right side
   5,308.72x = 29,631,959.39
5. Step 5: Solve for x
   x = 29,631,959.39/5,308.72
6. Step 6: Final answer
   x = 5,581.75