Finding the Fourth Proportional to 21,845.78, 30,150.41 and 13,352.79

Step by Step Solution

1. Step 1: Write the proportion equation
   21,845.78 : 30,150.41 = 13,352.79 : x
2. Step 2: Convert to fraction form
   21,845.78/30,150.41 = 13,352.79/x
3. Step 3: Cross multiply
   21,845.78x = 30,150.41 × 13,352.79
4. Step 4: Simplify right side
   21,845.78x = 402,592,222.90
5. Step 5: Solve for x
   x = 402,592,222.90/21,845.78
6. Step 6: Final answer
   x = 18,428.83