Finding the Fourth Proportional to 9,134.79, 12,606.37 and 5,357.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,134.79 : 12,606.37 = 5,357.43 : x
2. Step 2: Convert to fraction form
   9,134.79/12,606.37 = 5,357.43/x
3. Step 3: Cross multiply
   9,134.79x = 12,606.37 × 5,357.43
4. Step 4: Simplify right side
   9,134.79x = 67,537,655.01
5. Step 5: Solve for x
   x = 67,537,655.01/9,134.79
6. Step 6: Final answer
   x = 7,393.46