Finding the Fourth Proportional to 22,071.77, 30,448.74 and 13,570.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,071.77 : 30,448.74 = 13,570.49 : x
2. Step 2: Convert to fraction form
   22,071.77/30,448.74 = 13,570.49/x
3. Step 3: Cross multiply
   22,071.77x = 30,448.74 × 13,570.49
4. Step 4: Simplify right side
   22,071.77x = 413,204,162.92
5. Step 5: Solve for x
   x = 413,204,162.92/22,071.77
6. Step 6: Final answer
   x = 18,720.94