Finding the Fourth Proportional to 11,189.50, 16,784.31 and 2,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,189.50 : 16,784.31 = 2,981.50 : x
2. Step 2: Convert to fraction form
   11,189.50/16,784.31 = 2,981.50/x
3. Step 3: Cross multiply
   11,189.50x = 16,784.31 × 2,981.50
4. Step 4: Simplify right side
   11,189.50x = 50,042,420.27
5. Step 5: Solve for x
   x = 50,042,420.27/11,189.50
6. Step 6: Final answer
   x = 4,472.27