Finding the Fourth Proportional to 15,072.89, 22,610.42 and 3,979.47

Step by Step Solution

1. Step 1: Write the proportion equation
   15,072.89 : 22,610.42 = 3,979.47 : x
2. Step 2: Convert to fraction form
   15,072.89/22,610.42 = 3,979.47/x
3. Step 3: Cross multiply
   15,072.89x = 22,610.42 × 3,979.47
4. Step 4: Simplify right side
   15,072.89x = 89,977,498.03
5. Step 5: Solve for x
   x = 89,977,498.03/15,072.89
6. Step 6: Final answer
   x = 5,969.49