Finding the Fourth Proportional to 15,579.50, 23,369.30 and 3,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15,579.50 : 23,369.30 = 3,892.72 : x
2. Step 2: Convert to fraction form
   15,579.50/23,369.30 = 3,892.72/x
3. Step 3: Cross multiply
   15,579.50x = 23,369.30 × 3,892.72
4. Step 4: Simplify right side
   15,579.50x = 90,970,141.50
5. Step 5: Solve for x
   x = 90,970,141.50/15,579.50
6. Step 6: Final answer
   x = 5,839.09