Finding the Fourth Proportional to 9,134.72, 12,606.12 and 5,360.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,134.72 : 12,606.12 = 5,360.36 : x
2. Step 2: Convert to fraction form
   9,134.72/12,606.12 = 5,360.36/x
3. Step 3: Cross multiply
   9,134.72x = 12,606.12 × 5,360.36
4. Step 4: Simplify right side
   9,134.72x = 67,573,341.40
5. Step 5: Solve for x
   x = 67,573,341.40/9,134.72
6. Step 6: Final answer
   x = 7,397.42