Finding the Fourth Proportional to 20,760.84, 31,116.42 and 7,606.08

Step by Step Solution

1. Step 1: Write the proportion equation
   20,760.84 : 31,116.42 = 7,606.08 : x
2. Step 2: Convert to fraction form
   20,760.84/31,116.42 = 7,606.08/x
3. Step 3: Cross multiply
   20,760.84x = 31,116.42 × 7,606.08
4. Step 4: Simplify right side
   20,760.84x = 236,673,979.83
5. Step 5: Solve for x
   x = 236,673,979.83/20,760.84
6. Step 6: Final answer
   x = 11,400.02