Finding the Fourth Proportional to 7,229.10, 10,845.72 and 3,531.36

Step by Step Solution

1. Step 1: Write the proportion equation
   7,229.10 : 10,845.72 = 3,531.36 : x
2. Step 2: Convert to fraction form
   7,229.10/10,845.72 = 3,531.36/x
3. Step 3: Cross multiply
   7,229.10x = 10,845.72 × 3,531.36
4. Step 4: Simplify right side
   7,229.10x = 38,300,141.78
5. Step 5: Solve for x
   x = 38,300,141.78/7,229.10
6. Step 6: Final answer
   x = 5,298.05