Finding the Fourth Proportional to 28,224.55, 42,328.93 and 8,500.24

Step by Step Solution

1. Step 1: Write the proportion equation
   28,224.55 : 42,328.93 = 8,500.24 : x
2. Step 2: Convert to fraction form
   28,224.55/42,328.93 = 8,500.24/x
3. Step 3: Cross multiply
   28,224.55x = 42,328.93 × 8,500.24
4. Step 4: Simplify right side
   28,224.55x = 359,806,111.54
5. Step 5: Solve for x
   x = 359,806,111.54/28,224.55
6. Step 6: Final answer
   x = 12,747.98