Finding the Fourth Proportional to 9,150.56, 12,626.16 and 5,374.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.56 : 12,626.16 = 5,374.16 : x
2. Step 2: Convert to fraction form
   9,150.56/12,626.16 = 5,374.16/x
3. Step 3: Cross multiply
   9,150.56x = 12,626.16 × 5,374.16
4. Step 4: Simplify right side
   9,150.56x = 67,855,004.03
5. Step 5: Solve for x
   x = 67,855,004.03/9,150.56
6. Step 6: Final answer
   x = 7,415.39