Finding the Fourth Proportional to 10,902.06, 16,353.06 and 3,109.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,902.06 : 16,353.06 = 3,109.86 : x
2. Step 2: Convert to fraction form
   10,902.06/16,353.06 = 3,109.86/x
3. Step 3: Cross multiply
   10,902.06x = 16,353.06 × 3,109.86
4. Step 4: Simplify right side
   10,902.06x = 50,855,727.17
5. Step 5: Solve for x
   x = 50,855,727.17/10,902.06
6. Step 6: Final answer
   x = 4,664.78