Finding the Fourth Proportional to 52,848.82, 72,931.71 and 28,975.78

Step by Step Solution

1. Step 1: Write the proportion equation
   52,848.82 : 72,931.71 = 28,975.78 : x
2. Step 2: Convert to fraction form
   52,848.82/72,931.71 = 28,975.78/x
3. Step 3: Cross multiply
   52,848.82x = 72,931.71 × 28,975.78
4. Step 4: Simplify right side
   52,848.82x = 2,113,253,183.98
5. Step 5: Solve for x
   x = 2,113,253,183.98/52,848.82
6. Step 6: Final answer
   x = 39,986.76