Finding the Fourth Proportional to 11,704.37, 17,540.96 and 5,123.39

Step by Step Solution

1. Step 1: Write the proportion equation
   11,704.37 : 17,540.96 = 5,123.39 : x
2. Step 2: Convert to fraction form
   11,704.37/17,540.96 = 5,123.39/x
3. Step 3: Cross multiply
   11,704.37x = 17,540.96 × 5,123.39
4. Step 4: Simplify right side
   11,704.37x = 89,869,065.73
5. Step 5: Solve for x
   x = 89,869,065.73/11,704.37
6. Step 6: Final answer
   x = 7,678.25