Finding the Fourth Proportional to 11,808.81, 17,695.37 and 7,123.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,808.81 : 17,695.37 = 7,123.62 : x
2. Step 2: Convert to fraction form
   11,808.81/17,695.37 = 7,123.62/x
3. Step 3: Cross multiply
   11,808.81x = 17,695.37 × 7,123.62
4. Step 4: Simplify right side
   11,808.81x = 126,054,967.54
5. Step 5: Solve for x
   x = 126,054,967.54/11,808.81
6. Step 6: Final answer
   x = 10,674.65