Finding the Fourth Proportional to 21,935.95, 30,269.59 and 13,434.19

Step by Step Solution

1. Step 1: Write the proportion equation
   21,935.95 : 30,269.59 = 13,434.19 : x
2. Step 2: Convert to fraction form
   21,935.95/30,269.59 = 13,434.19/x
3. Step 3: Cross multiply
   21,935.95x = 30,269.59 × 13,434.19
4. Step 4: Simplify right side
   21,935.95x = 406,647,314.02
5. Step 5: Solve for x
   x = 406,647,314.02/21,935.95
6. Step 6: Final answer
   x = 18,537.94