Finding the Fourth Proportional to 72,530.02, 108,744 and 28,119.34

Step by Step Solution

1. Step 1: Write the proportion equation
   72,530.02 : 108,744 = 28,119.34 : x
2. Step 2: Convert to fraction form
   72,530.02/108,744 = 28,119.34/x
3. Step 3: Cross multiply
   72,530.02x = 108,744 × 28,119.34
4. Step 4: Simplify right side
   72,530.02x = 3,057,809,508.96
5. Step 5: Solve for x
   x = 3,057,809,508.96/72,530.02
6. Step 6: Final answer
   x = 42,159.23