Finding the Fourth Proportional to 6,874.72, 9,487.12 and 3,730.90

Step by Step Solution

1. Step 1: Write the proportion equation
   6,874.72 : 9,487.12 = 3,730.90 : x
2. Step 2: Convert to fraction form
   6,874.72/9,487.12 = 3,730.90/x
3. Step 3: Cross multiply
   6,874.72x = 9,487.12 × 3,730.90
4. Step 4: Simplify right side
   6,874.72x = 35,395,531.82
5. Step 5: Solve for x
   x = 35,395,531.82/6,874.72
6. Step 6: Final answer
   x = 5,148.65