Finding the Fourth Proportional to 16,695.50, 23,039.60 and 9,141.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,695.50 : 23,039.60 = 9,141.74 : x
2. Step 2: Convert to fraction form
   16,695.50/23,039.60 = 9,141.74/x
3. Step 3: Cross multiply
   16,695.50x = 23,039.60 × 9,141.74
4. Step 4: Simplify right side
   16,695.50x = 210,622,032.90
5. Step 5: Solve for x
   x = 210,622,032.90/16,695.50
6. Step 6: Final answer
   x = 12,615.50