Finding the Fourth Proportional to 43,146.72, 64,731.60 and 15,452.64

Step by Step Solution

1. Step 1: Write the proportion equation
   43,146.72 : 64,731.60 = 15,452.64 : x
2. Step 2: Convert to fraction form
   43,146.72/64,731.60 = 15,452.64/x
3. Step 3: Cross multiply
   43,146.72x = 64,731.60 × 15,452.64
4. Step 4: Simplify right side
   43,146.72x = 1,000,274,111.42
5. Step 5: Solve for x
   x = 1,000,274,111.42/43,146.72
6. Step 6: Final answer
   x = 23,183.09