Finding the Fourth Proportional to 8,697.24, 11,997.60 and 5,340.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,697.24 : 11,997.60 = 5,340.72 : x
2. Step 2: Convert to fraction form
   8,697.24/11,997.60 = 5,340.72/x
3. Step 3: Cross multiply
   8,697.24x = 11,997.60 × 5,340.72
4. Step 4: Simplify right side
   8,697.24x = 64,075,822.27
5. Step 5: Solve for x
   x = 64,075,822.27/8,697.24
6. Step 6: Final answer
   x = 7,367.37