Finding the Fourth Proportional to 72,583.50, 108,882.12 and 28,213.68

Step by Step Solution

1. Step 1: Write the proportion equation
   72,583.50 : 108,882.12 = 28,213.68 : x
2. Step 2: Convert to fraction form
   72,583.50/108,882.12 = 28,213.68/x
3. Step 3: Cross multiply
   72,583.50x = 108,882.12 × 28,213.68
4. Step 4: Simplify right side
   72,583.50x = 3,071,965,291.40
5. Step 5: Solve for x
   x = 3,071,965,291.40/72,583.50
6. Step 6: Final answer
   x = 42,323.19