Finding the Fourth Proportional to 21,719.33, 29,975.89 and 13,762.29

Step by Step Solution

1. Step 1: Write the proportion equation
   21,719.33 : 29,975.89 = 13,762.29 : x
2. Step 2: Convert to fraction form
   21,719.33/29,975.89 = 13,762.29/x
3. Step 3: Cross multiply
   21,719.33x = 29,975.89 × 13,762.29
4. Step 4: Simplify right side
   21,719.33x = 412,536,891.19
5. Step 5: Solve for x
   x = 412,536,891.19/21,719.33
6. Step 6: Final answer
   x = 18,994.00