Finding the Fourth Proportional to 8,714.78, 13,068.71 and 3,165.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,714.78 : 13,068.71 = 3,165.10 : x
2. Step 2: Convert to fraction form
   8,714.78/13,068.71 = 3,165.10/x
3. Step 3: Cross multiply
   8,714.78x = 13,068.71 × 3,165.10
4. Step 4: Simplify right side
   8,714.78x = 41,363,725.52
5. Step 5: Solve for x
   x = 41,363,725.52/8,714.78
6. Step 6: Final answer
   x = 4,746.39