Finding the Fourth Proportional to 9,194.82, 12,689.56 and 5,216.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,194.82 : 12,689.56 = 5,216.10 : x
2. Step 2: Convert to fraction form
   9,194.82/12,689.56 = 5,216.10/x
3. Step 3: Cross multiply
   9,194.82x = 12,689.56 × 5,216.10
4. Step 4: Simplify right side
   9,194.82x = 66,190,013.92
5. Step 5: Solve for x
   x = 66,190,013.92/9,194.82
6. Step 6: Final answer
   x = 7,198.62