Finding the Fourth Proportional to 9,196.19, 12,689.86 and 5,162.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,196.19 : 12,689.86 = 5,162.09 : x
2. Step 2: Convert to fraction form
   9,196.19/12,689.86 = 5,162.09/x
3. Step 3: Cross multiply
   9,196.19x = 12,689.86 × 5,162.09
4. Step 4: Simplify right side
   9,196.19x = 65,506,221.72
5. Step 5: Solve for x
   x = 65,506,221.72/9,196.19
6. Step 6: Final answer
   x = 7,123.19