Finding the Fourth Proportional to 15,587.72, 23,390.89 and 5,727.99

Step by Step Solution

1. Step 1: Write the proportion equation
   15,587.72 : 23,390.89 = 5,727.99 : x
2. Step 2: Convert to fraction form
   15,587.72/23,390.89 = 5,727.99/x
3. Step 3: Cross multiply
   15,587.72x = 23,390.89 × 5,727.99
4. Step 4: Simplify right side
   15,587.72x = 133,982,769.69
5. Step 5: Solve for x
   x = 133,982,769.69/15,587.72
6. Step 6: Final answer
   x = 8,595.41