Finding the Fourth Proportional to 7,092.50, 10,639.28 and 2,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,092.50 : 10,639.28 = 2,162.50 : x
2. Step 2: Convert to fraction form
   7,092.50/10,639.28 = 2,162.50/x
3. Step 3: Cross multiply
   7,092.50x = 10,639.28 × 2,162.50
4. Step 4: Simplify right side
   7,092.50x = 23,007,421.81
5. Step 5: Solve for x
   x = 23,007,421.81/7,092.50
6. Step 6: Final answer
   x = 3,243.91