Finding the Fourth Proportional to 5,457.72, 7,531.47 and 3,336.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,457.72 : 7,531.47 = 3,336.81 : x
2. Step 2: Convert to fraction form
   5,457.72/7,531.47 = 3,336.81/x
3. Step 3: Cross multiply
   5,457.72x = 7,531.47 × 3,336.81
4. Step 4: Simplify right side
   5,457.72x = 25,131,084.41
5. Step 5: Solve for x
   x = 25,131,084.41/5,457.72
6. Step 6: Final answer
   x = 4,604.69