Finding the Fourth Proportional to 52,673.05, 72,686.55 and 28,800.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,673.05 : 72,686.55 = 28,800.10 : x
2. Step 2: Convert to fraction form
   52,673.05/72,686.55 = 28,800.10/x
3. Step 3: Cross multiply
   52,673.05x = 72,686.55 × 28,800.10
4. Step 4: Simplify right side
   52,673.05x = 2,093,379,908.66
5. Step 5: Solve for x
   x = 2,093,379,908.66/52,673.05
6. Step 6: Final answer
   x = 39,742.90