Finding the Fourth Proportional to 10,900.27, 16,350.05 and 3,109.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.27 : 16,350.05 = 3,109.08 : x
2. Step 2: Convert to fraction form
   10,900.27/16,350.05 = 3,109.08/x
3. Step 3: Cross multiply
   10,900.27x = 16,350.05 × 3,109.08
4. Step 4: Simplify right side
   10,900.27x = 50,833,621.23
5. Step 5: Solve for x
   x = 50,833,621.23/10,900.27
6. Step 6: Final answer
   x = 4,663.52