Finding the Fourth Proportional to 52,816.05, 72,887.81 and 28,944.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,816.05 : 72,887.81 = 28,944.18 : x
2. Step 2: Convert to fraction form
   52,816.05/72,887.81 = 28,944.18/x
3. Step 3: Cross multiply
   52,816.05x = 72,887.81 × 28,944.18
4. Step 4: Simplify right side
   52,816.05x = 2,109,677,747.72
5. Step 5: Solve for x
   x = 2,109,677,747.72/52,816.05
6. Step 6: Final answer
   x = 39,943.88