Finding the Fourth Proportional to 7,789.91, 10,745.28 and 5,552.51

Step by Step Solution

1. Step 1: Write the proportion equation
   7,789.91 : 10,745.28 = 5,552.51 : x
2. Step 2: Convert to fraction form
   7,789.91/10,745.28 = 5,552.51/x
3. Step 3: Cross multiply
   7,789.91x = 10,745.28 × 5,552.51
4. Step 4: Simplify right side
   7,789.91x = 59,663,274.65
5. Step 5: Solve for x
   x = 59,663,274.65/7,789.91
6. Step 6: Final answer
   x = 7,659.05