Finding the Fourth Proportional to 9,134.38, 12,607.56 and 5,358.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,134.38 : 12,607.56 = 5,358.76 : x
2. Step 2: Convert to fraction form
   9,134.38/12,607.56 = 5,358.76/x
3. Step 3: Cross multiply
   9,134.38x = 12,607.56 × 5,358.76
4. Step 4: Simplify right side
   9,134.38x = 67,560,895.71
5. Step 5: Solve for x
   x = 67,560,895.71/9,134.38
6. Step 6: Final answer
   x = 7,396.33