Finding the Fourth Proportional to 8,918.72, 13,374.84 and 4,540.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,918.72 : 13,374.84 = 4,540.04 : x
2. Step 2: Convert to fraction form
   8,918.72/13,374.84 = 4,540.04/x
3. Step 3: Cross multiply
   8,918.72x = 13,374.84 × 4,540.04
4. Step 4: Simplify right side
   8,918.72x = 60,722,308.59
5. Step 5: Solve for x
   x = 60,722,308.59/8,918.72
6. Step 6: Final answer
   x = 6,808.41