Finding the Fourth Proportional to 7,091.18, 10,622.43 and 3,576.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,091.18 : 10,622.43 = 3,576.30 : x
2. Step 2: Convert to fraction form
   7,091.18/10,622.43 = 3,576.30/x
3. Step 3: Cross multiply
   7,091.18x = 10,622.43 × 3,576.30
4. Step 4: Simplify right side
   7,091.18x = 37,988,943.30
5. Step 5: Solve for x
   x = 37,988,943.30/7,091.18
6. Step 6: Final answer
   x = 5,357.21