Finding the Fourth Proportional to 72,582.40, 108,845.52 and 28,203.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,582.40 : 108,845.52 = 28,203.31 : x
2. Step 2: Convert to fraction form
   72,582.40/108,845.52 = 28,203.31/x
3. Step 3: Cross multiply
   72,582.40x = 108,845.52 × 28,203.31
4. Step 4: Simplify right side
   72,582.40x = 3,069,803,942.67
5. Step 5: Solve for x
   x = 3,069,803,942.67/72,582.40
6. Step 6: Final answer
   x = 42,294.05