Finding the Fourth Proportional to 72,585.20, 108,826.32 and 28,174.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,585.20 : 108,826.32 = 28,174.52 : x
2. Step 2: Convert to fraction form
   72,585.20/108,826.32 = 28,174.52/x
3. Step 3: Cross multiply
   72,585.20x = 108,826.32 × 28,174.52
4. Step 4: Simplify right side
   72,585.20x = 3,066,129,329.37
5. Step 5: Solve for x
   x = 3,066,129,329.37/72,585.20
6. Step 6: Final answer
   x = 42,241.80