Finding the Fourth Proportional to 7,371.72, 10,172.88 and 4,227.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,371.72 : 10,172.88 = 4,227.84 : x
2. Step 2: Convert to fraction form
   7,371.72/10,172.88 = 4,227.84/x
3. Step 3: Cross multiply
   7,371.72x = 10,172.88 × 4,227.84
4. Step 4: Simplify right side
   7,371.72x = 43,009,308.98
5. Step 5: Solve for x
   x = 43,009,308.98/7,371.72
6. Step 6: Final answer
   x = 5,834.37