Finding the Fourth Proportional to 8,745.89, 12,065.48 and 5,912.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,745.89 : 12,065.48 = 5,912.22 : x
2. Step 2: Convert to fraction form
   8,745.89/12,065.48 = 5,912.22/x
3. Step 3: Cross multiply
   8,745.89x = 12,065.48 × 5,912.22
4. Step 4: Simplify right side
   8,745.89x = 71,333,742.60
5. Step 5: Solve for x
   x = 71,333,742.60/8,745.89
6. Step 6: Final answer
   x = 8,156.26