Finding the Fourth Proportional to 9,149.58, 12,628.86 and 5,373.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,149.58 : 12,628.86 = 5,373.30 : x
2. Step 2: Convert to fraction form
   9,149.58/12,628.86 = 5,373.30/x
3. Step 3: Cross multiply
   9,149.58x = 12,628.86 × 5,373.30
4. Step 4: Simplify right side
   9,149.58x = 67,858,653.44
5. Step 5: Solve for x
   x = 67,858,653.44/9,149.58
6. Step 6: Final answer
   x = 7,416.59