Finding the Fourth Proportional to 7,032.24, 10,553.28 and 5,188.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,032.24 : 10,553.28 = 5,188.12 : x
2. Step 2: Convert to fraction form
   7,032.24/10,553.28 = 5,188.12/x
3. Step 3: Cross multiply
   7,032.24x = 10,553.28 × 5,188.12
4. Step 4: Simplify right side
   7,032.24x = 54,751,683.03
5. Step 5: Solve for x
   x = 54,751,683.03/7,032.24
6. Step 6: Final answer
   x = 7,785.81