Finding the Fourth Proportional to 6,861.48, 10,284.45 and 3,156.06

Step by Step Solution

1. Step 1: Write the proportion equation
   6,861.48 : 10,284.45 = 3,156.06 : x
2. Step 2: Convert to fraction form
   6,861.48/10,284.45 = 3,156.06/x
3. Step 3: Cross multiply
   6,861.48x = 10,284.45 × 3,156.06
4. Step 4: Simplify right side
   6,861.48x = 32,458,341.27
5. Step 5: Solve for x
   x = 32,458,341.27/6,861.48
6. Step 6: Final answer
   x = 4,730.52