Finding the Fourth Proportional to 72,892.43, 108,939.27 and 53,212.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,892.43 : 108,939.27 = 53,212.43 : x
2. Step 2: Convert to fraction form
   72,892.43/108,939.27 = 53,212.43/x
3. Step 3: Cross multiply
   72,892.43x = 108,939.27 × 53,212.43
4. Step 4: Simplify right side
   72,892.43x = 5,796,923,551.47
5. Step 5: Solve for x
   x = 5,796,923,551.47/72,892.43
6. Step 6: Final answer
   x = 79,527.10