Finding the Fourth Proportional to 22,580.99, 31,162.86 and 13,628.33

Step by Step Solution

1. Step 1: Write the proportion equation
   22,580.99 : 31,162.86 = 13,628.33 : x
2. Step 2: Convert to fraction form
   22,580.99/31,162.86 = 13,628.33/x
3. Step 3: Cross multiply
   22,580.99x = 31,162.86 × 13,628.33
4. Step 4: Simplify right side
   22,580.99x = 424,697,584.01
5. Step 5: Solve for x
   x = 424,697,584.01/22,580.99
6. Step 6: Final answer
   x = 18,807.75