Finding the Fourth Proportional to 22,113.48, 30,516.69 and 13,160.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,113.48 : 30,516.69 = 13,160.94 : x
2. Step 2: Convert to fraction form
   22,113.48/30,516.69 = 13,160.94/x
3. Step 3: Cross multiply
   22,113.48x = 30,516.69 × 13,160.94
4. Step 4: Simplify right side
   22,113.48x = 401,628,326.09
5. Step 5: Solve for x
   x = 401,628,326.09/22,113.48
6. Step 6: Final answer
   x = 18,162.15