Finding the Fourth Proportional to 72,529.52, 108,743.25 and 28,118.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,529.52 : 108,743.25 = 28,118.84 : x
2. Step 2: Convert to fraction form
   72,529.52/108,743.25 = 28,118.84/x
3. Step 3: Cross multiply
   72,529.52x = 108,743.25 × 28,118.84
4. Step 4: Simplify right side
   72,529.52x = 3,057,734,047.83
5. Step 5: Solve for x
   x = 3,057,734,047.83/72,529.52
6. Step 6: Final answer
   x = 42,158.48