Finding the Fourth Proportional to 52,711.72, 72,741.56 and 28,838.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,711.72 : 72,741.56 = 28,838.12 : x
2. Step 2: Convert to fraction form
   52,711.72/72,741.56 = 28,838.12/x
3. Step 3: Cross multiply
   52,711.72x = 72,741.56 × 28,838.12
4. Step 4: Simplify right side
   52,711.72x = 2,097,729,836.27
5. Step 5: Solve for x
   x = 2,097,729,836.27/52,711.72
6. Step 6: Final answer
   x = 39,796.27