Finding the Fourth Proportional to 22,093.67, 30,479.18 and 13,136.07

Step by Step Solution

1. Step 1: Write the proportion equation
   22,093.67 : 30,479.18 = 13,136.07 : x
2. Step 2: Convert to fraction form
   22,093.67/30,479.18 = 13,136.07/x
3. Step 3: Cross multiply
   22,093.67x = 30,479.18 × 13,136.07
4. Step 4: Simplify right side
   22,093.67x = 400,376,576.34
5. Step 5: Solve for x
   x = 400,376,576.34/22,093.67
6. Step 6: Final answer
   x = 18,121.78