Finding the Fourth Proportional to 9,162.76, 12,636.79 and 7,043.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162.76 : 12,636.79 = 7,043.43 : x
2. Step 2: Convert to fraction form
   9,162.76/12,636.79 = 7,043.43/x
3. Step 3: Cross multiply
   9,162.76x = 12,636.79 × 7,043.43
4. Step 4: Simplify right side
   9,162.76x = 89,006,345.79
5. Step 5: Solve for x
   x = 89,006,345.79/9,162.76
6. Step 6: Final answer
   x = 9,713.92