Finding the Fourth Proportional to 21,958.83, 32,943.50 and 7,167.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,958.83 : 32,943.50 = 7,167.78 : x
2. Step 2: Convert to fraction form
   21,958.83/32,943.50 = 7,167.78/x
3. Step 3: Cross multiply
   21,958.83x = 32,943.50 × 7,167.78
4. Step 4: Simplify right side
   21,958.83x = 236,131,724.59
5. Step 5: Solve for x
   x = 236,131,724.59/21,958.83
6. Step 6: Final answer
   x = 10,753.38