Finding the Fourth Proportional to 8,218.58, 12,342.72 and 7,559.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,218.58 : 12,342.72 = 7,559.27 : x
2. Step 2: Convert to fraction form
   8,218.58/12,342.72 = 7,559.27/x
3. Step 3: Cross multiply
   8,218.58x = 12,342.72 × 7,559.27
4. Step 4: Simplify right side
   8,218.58x = 93,301,953.01
5. Step 5: Solve for x
   x = 93,301,953.01/8,218.58
6. Step 6: Final answer
   x = 11,352.56