Finding the Fourth Proportional to 20,636.63, 28,496.01 and 13,096.34

Step by Step Solution

1. Step 1: Write the proportion equation
   20,636.63 : 28,496.01 = 13,096.34 : x
2. Step 2: Convert to fraction form
   20,636.63/28,496.01 = 13,096.34/x
3. Step 3: Cross multiply
   20,636.63x = 28,496.01 × 13,096.34
4. Step 4: Simplify right side
   20,636.63x = 373,193,435.60
5. Step 5: Solve for x
   x = 373,193,435.60/20,636.63
6. Step 6: Final answer
   x = 18,084.03