Finding the Fourth Proportional to 7,648.72, 10,553.83 and 5,134.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,648.72 : 10,553.83 = 5,134.48 : x
2. Step 2: Convert to fraction form
   7,648.72/10,553.83 = 5,134.48/x
3. Step 3: Cross multiply
   7,648.72x = 10,553.83 × 5,134.48
4. Step 4: Simplify right side
   7,648.72x = 54,188,389.84
5. Step 5: Solve for x
   x = 54,188,389.84/7,648.72
6. Step 6: Final answer
   x = 7,084.64