Finding the Fourth Proportional to 15,162.72, 22,746.48 and 4,771.20

Step by Step Solution

1. Step 1: Write the proportion equation
   15,162.72 : 22,746.48 = 4,771.20 : x
2. Step 2: Convert to fraction form
   15,162.72/22,746.48 = 4,771.20/x
3. Step 3: Cross multiply
   15,162.72x = 22,746.48 × 4,771.20
4. Step 4: Simplify right side
   15,162.72x = 108,528,005.38
5. Step 5: Solve for x
   x = 108,528,005.38/15,162.72
6. Step 6: Final answer
   x = 7,157.56