Finding the Fourth Proportional to 5,269.89, 7,272.42 and 2,912.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,269.89 : 7,272.42 = 2,912.01 : x
2. Step 2: Convert to fraction form
   5,269.89/7,272.42 = 2,912.01/x
3. Step 3: Cross multiply
   5,269.89x = 7,272.42 × 2,912.01
4. Step 4: Simplify right side
   5,269.89x = 21,177,359.76
5. Step 5: Solve for x
   x = 21,177,359.76/5,269.89
6. Step 6: Final answer
   x = 4,018.56