Finding the Fourth Proportional to 52,724.72, 72,760.12 and 28,851.40

Step by Step Solution

1. Step 1: Write the proportion equation
   52,724.72 : 72,760.12 = 28,851.40 : x
2. Step 2: Convert to fraction form
   52,724.72/72,760.12 = 28,851.40/x
3. Step 3: Cross multiply
   52,724.72x = 72,760.12 × 28,851.40
4. Step 4: Simplify right side
   52,724.72x = 2,099,231,302.64
5. Step 5: Solve for x
   x = 2,099,231,302.64/52,724.72
6. Step 6: Final answer
   x = 39,814.93