Finding the Fourth Proportional to 7,156.81, 10,738.31 and 3,872.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,156.81 : 10,738.31 = 3,872.22 : x
2. Step 2: Convert to fraction form
   7,156.81/10,738.31 = 3,872.22/x
3. Step 3: Cross multiply
   7,156.81x = 10,738.31 × 3,872.22
4. Step 4: Simplify right side
   7,156.81x = 41,581,098.75
5. Step 5: Solve for x
   x = 41,581,098.75/7,156.81
6. Step 6: Final answer
   x = 5,810.00