Finding the Fourth Proportional to 52,878.42, 72,866.79 and 37,728.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,878.42 : 72,866.79 = 37,728.38 : x
2. Step 2: Convert to fraction form
   52,878.42/72,866.79 = 37,728.38/x
3. Step 3: Cross multiply
   52,878.42x = 72,866.79 × 37,728.38
4. Step 4: Simplify right side
   52,878.42x = 2,749,146,124.67
5. Step 5: Solve for x
   x = 2,749,146,124.67/52,878.42
6. Step 6: Final answer
   x = 51,989.94