Finding the Fourth Proportional to 7,426.72, 11,141.31 and 3,529.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,426.72 : 11,141.31 = 3,529.81 : x
2. Step 2: Convert to fraction form
   7,426.72/11,141.31 = 3,529.81/x
3. Step 3: Cross multiply
   7,426.72x = 11,141.31 × 3,529.81
4. Step 4: Simplify right side
   7,426.72x = 39,326,707.45
5. Step 5: Solve for x
   x = 39,326,707.45/7,426.72
6. Step 6: Final answer
   x = 5,295.30