Finding the Fourth Proportional to 12,116.52, 16,709.22 and 7,641

Step by Step Solution

1. Step 1: Write the proportion equation
   12,116.52 : 16,709.22 = 7,641 : x
2. Step 2: Convert to fraction form
   12,116.52/16,709.22 = 7,641/x
3. Step 3: Cross multiply
   12,116.52x = 16,709.22 × 7,641
4. Step 4: Simplify right side
   12,116.52x = 127,675,150.02
5. Step 5: Solve for x
   x = 127,675,150.02/12,116.52
6. Step 6: Final answer
   x = 10,537.28