Finding the Fourth Proportional to 9,149.35, 12,629.06 and 5,372.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,149.35 : 12,629.06 = 5,372.42 : x
2. Step 2: Convert to fraction form
   9,149.35/12,629.06 = 5,372.42/x
3. Step 3: Cross multiply
   9,149.35x = 12,629.06 × 5,372.42
4. Step 4: Simplify right side
   9,149.35x = 67,848,564.81
5. Step 5: Solve for x
   x = 67,848,564.81/9,149.35
6. Step 6: Final answer
   x = 7,415.67