Finding the Fourth Proportional to 21,983.18, 30,323.31 and 17,955.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,983.18 : 30,323.31 = 17,955.86 : x
2. Step 2: Convert to fraction form
   21,983.18/30,323.31 = 17,955.86/x
3. Step 3: Cross multiply
   21,983.18x = 30,323.31 × 17,955.86
4. Step 4: Simplify right side
   21,983.18x = 544,481,109.10
5. Step 5: Solve for x
   x = 544,481,109.10/21,983.18
6. Step 6: Final answer
   x = 24,768.08