Finding the Fourth Proportional to 10,902.90, 16,352.46 and 3,109.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,902.90 : 16,352.46 = 3,109.62 : x
2. Step 2: Convert to fraction form
   10,902.90/16,352.46 = 3,109.62/x
3. Step 3: Cross multiply
   10,902.90x = 16,352.46 × 3,109.62
4. Step 4: Simplify right side
   10,902.90x = 50,849,936.67
5. Step 5: Solve for x
   x = 50,849,936.67/10,902.90
6. Step 6: Final answer
   x = 4,663.89