Finding the Fourth Proportional to 7,072.72, 9,772.88 and 5,089.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,072.72 : 9,772.88 = 5,089.84 : x
2. Step 2: Convert to fraction form
   7,072.72/9,772.88 = 5,089.84/x
3. Step 3: Cross multiply
   7,072.72x = 9,772.88 × 5,089.84
4. Step 4: Simplify right side
   7,072.72x = 49,742,395.54
5. Step 5: Solve for x
   x = 49,742,395.54/7,072.72
6. Step 6: Final answer
   x = 7,032.99