Finding the Fourth Proportional to 9,134.51, 12,606.71 and 5,359.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,134.51 : 12,606.71 = 5,359.10 : x
2. Step 2: Convert to fraction form
   9,134.51/12,606.71 = 5,359.10/x
3. Step 3: Cross multiply
   9,134.51x = 12,606.71 × 5,359.10
4. Step 4: Simplify right side
   9,134.51x = 67,560,529.73
5. Step 5: Solve for x
   x = 67,560,529.73/9,134.51
6. Step 6: Final answer
   x = 7,396.19