Finding the Fourth Proportional to 7,022.31, 10,532.23 and 3,072.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,022.31 : 10,532.23 = 3,072.81 : x
2. Step 2: Convert to fraction form
   7,022.31/10,532.23 = 3,072.81/x
3. Step 3: Cross multiply
   7,022.31x = 10,532.23 × 3,072.81
4. Step 4: Simplify right side
   7,022.31x = 32,363,573.48
5. Step 5: Solve for x
   x = 32,363,573.48/7,022.31
6. Step 6: Final answer
   x = 4,608.68