Finding the Fourth Proportional to 6,573.08, 9,861.78 and 3,112.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,573.08 : 9,861.78 = 3,112.76 : x
2. Step 2: Convert to fraction form
   6,573.08/9,861.78 = 3,112.76/x
3. Step 3: Cross multiply
   6,573.08x = 9,861.78 × 3,112.76
4. Step 4: Simplify right side
   6,573.08x = 30,697,354.31
5. Step 5: Solve for x
   x = 30,697,354.31/6,573.08
6. Step 6: Final answer
   x = 4,670.16