Finding the Fourth Proportional to 55,148.72, 82,711.56 and 15,697.04

Step by Step Solution

1. Step 1: Write the proportion equation
   55,148.72 : 82,711.56 = 15,697.04 : x
2. Step 2: Convert to fraction form
   55,148.72/82,711.56 = 15,697.04/x
3. Step 3: Cross multiply
   55,148.72x = 82,711.56 × 15,697.04
4. Step 4: Simplify right side
   55,148.72x = 1,298,326,665.78
5. Step 5: Solve for x
   x = 1,298,326,665.78/55,148.72
6. Step 6: Final answer
   x = 23,542.28