Finding the Fourth Proportional to 21,594.59, 29,802.71 and 13,096.43

Step by Step Solution

1. Step 1: Write the proportion equation
   21,594.59 : 29,802.71 = 13,096.43 : x
2. Step 2: Convert to fraction form
   21,594.59/29,802.71 = 13,096.43/x
3. Step 3: Cross multiply
   21,594.59x = 29,802.71 × 13,096.43
4. Step 4: Simplify right side
   21,594.59x = 390,309,039.84
5. Step 5: Solve for x
   x = 390,309,039.84/21,594.59
6. Step 6: Final answer
   x = 18,074.39