Finding the Fourth Proportional to 22,116.43, 30,525.15 and 13,622.77

Step by Step Solution

1. Step 1: Write the proportion equation
   22,116.43 : 30,525.15 = 13,622.77 : x
2. Step 2: Convert to fraction form
   22,116.43/30,525.15 = 13,622.77/x
3. Step 3: Cross multiply
   22,116.43x = 30,525.15 × 13,622.77
4. Step 4: Simplify right side
   22,116.43x = 415,837,097.67
5. Step 5: Solve for x
   x = 415,837,097.67/22,116.43
6. Step 6: Final answer
   x = 18,802.18