Finding the Fourth Proportional to 10,908.37, 16,362.20 and 3,117.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,908.37 : 16,362.20 = 3,117.18 : x
2. Step 2: Convert to fraction form
   10,908.37/16,362.20 = 3,117.18/x
3. Step 3: Cross multiply
   10,908.37x = 16,362.20 × 3,117.18
4. Step 4: Simplify right side
   10,908.37x = 51,003,848.58
5. Step 5: Solve for x
   x = 51,003,848.58/10,908.37
6. Step 6: Final answer
   x = 4,675.66