Finding the Fourth Proportional to 21,911.50, 32,850.85 and 7,111.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,911.50 : 32,850.85 = 7,111.59 : x
2. Step 2: Convert to fraction form
   21,911.50/32,850.85 = 7,111.59/x
3. Step 3: Cross multiply
   21,911.50x = 32,850.85 × 7,111.59
4. Step 4: Simplify right side
   21,911.50x = 233,621,776.35
5. Step 5: Solve for x
   x = 233,621,776.35/21,911.50
6. Step 6: Final answer
   x = 10,662.06