Finding the Fourth Proportional to 9,196.38, 12,686.90 and 7,068.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,196.38 : 12,686.90 = 7,068.11 : x
2. Step 2: Convert to fraction form
   9,196.38/12,686.90 = 7,068.11/x
3. Step 3: Cross multiply
   9,196.38x = 12,686.90 × 7,068.11
4. Step 4: Simplify right side
   9,196.38x = 89,672,305.98
5. Step 5: Solve for x
   x = 89,672,305.98/9,196.38
6. Step 6: Final answer
   x = 9,750.83