Finding the Fourth Proportional to 7,052.22, 10,557.56 and 5,211.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,052.22 : 10,557.56 = 5,211.56 : x
2. Step 2: Convert to fraction form
   7,052.22/10,557.56 = 5,211.56/x
3. Step 3: Cross multiply
   7,052.22x = 10,557.56 × 5,211.56
4. Step 4: Simplify right side
   7,052.22x = 55,021,357.73
5. Step 5: Solve for x
   x = 55,021,357.73/7,052.22
6. Step 6: Final answer
   x = 7,801.99