Finding the Fourth Proportional to 21,935.98, 30,271.56 and 11,864.43

Step by Step Solution

1. Step 1: Write the proportion equation
   21,935.98 : 30,271.56 = 11,864.43 : x
2. Step 2: Convert to fraction form
   21,935.98/30,271.56 = 11,864.43/x
3. Step 3: Cross multiply
   21,935.98x = 30,271.56 × 11,864.43
4. Step 4: Simplify right side
   21,935.98x = 359,154,804.61
5. Step 5: Solve for x
   x = 359,154,804.61/21,935.98
6. Step 6: Final answer
   x = 16,372.86