Finding the Fourth Proportional to 7,112.95, 9,812.83 and 5,221.27

Step by Step Solution

1. Step 1: Write the proportion equation
   7,112.95 : 9,812.83 = 5,221.27 : x
2. Step 2: Convert to fraction form
   7,112.95/9,812.83 = 5,221.27/x
3. Step 3: Cross multiply
   7,112.95x = 9,812.83 × 5,221.27
4. Step 4: Simplify right side
   7,112.95x = 51,235,434.89
5. Step 5: Solve for x
   x = 51,235,434.89/7,112.95
6. Step 6: Final answer
   x = 7,203.12