Finding the Fourth Proportional to 7,247.52, 10,009.83 and 5,128.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,247.52 : 10,009.83 = 5,128.38 : x
2. Step 2: Convert to fraction form
   7,247.52/10,009.83 = 5,128.38/x
3. Step 3: Cross multiply
   7,247.52x = 10,009.83 × 5,128.38
4. Step 4: Simplify right side
   7,247.52x = 51,334,211.98
5. Step 5: Solve for x
   x = 51,334,211.98/7,247.52
6. Step 6: Final answer
   x = 7,083.00