Finding the Fourth Proportional to 15,665.94, 23,499.15 and 5,137.05

Step by Step Solution

1. Step 1: Write the proportion equation
   15,665.94 : 23,499.15 = 5,137.05 : x
2. Step 2: Convert to fraction form
   15,665.94/23,499.15 = 5,137.05/x
3. Step 3: Cross multiply
   15,665.94x = 23,499.15 × 5,137.05
4. Step 4: Simplify right side
   15,665.94x = 120,716,377.37
5. Step 5: Solve for x
   x = 120,716,377.37/15,665.94
6. Step 6: Final answer
   x = 7,705.66