Finding the Fourth Proportional to 8,697.94, 13,040.52 and 5,581.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,697.94 : 13,040.52 = 5,581.45 : x
2. Step 2: Convert to fraction form
   8,697.94/13,040.52 = 5,581.45/x
3. Step 3: Cross multiply
   8,697.94x = 13,040.52 × 5,581.45
4. Step 4: Simplify right side
   8,697.94x = 72,785,010.35
5. Step 5: Solve for x
   x = 72,785,010.35/8,697.94
6. Step 6: Final answer
   x = 8,368.07