Finding the Fourth Proportional to 8,984.74, 12,399.01 and 5,208.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,984.74 : 12,399.01 = 5,208.82 : x
2. Step 2: Convert to fraction form
   8,984.74/12,399.01 = 5,208.82/x
3. Step 3: Cross multiply
   8,984.74x = 12,399.01 × 5,208.82
4. Step 4: Simplify right side
   8,984.74x = 64,584,123.23
5. Step 5: Solve for x
   x = 64,584,123.23/8,984.74
6. Step 6: Final answer
   x = 7,188.21