Finding the Fourth Proportional to 8,697.35, 13,042.58 and 3,149.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,697.35 : 13,042.58 = 3,149.05 : x
2. Step 2: Convert to fraction form
   8,697.35/13,042.58 = 3,149.05/x
3. Step 3: Cross multiply
   8,697.35x = 13,042.58 × 3,149.05
4. Step 4: Simplify right side
   8,697.35x = 41,071,736.55
5. Step 5: Solve for x
   x = 41,071,736.55/8,697.35
6. Step 6: Final answer
   x = 4,722.33