Finding the Fourth Proportional to 9,150.09, 12,628.29 and 5,374.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.09 : 12,628.29 = 5,374.68 : x
2. Step 2: Convert to fraction form
   9,150.09/12,628.29 = 5,374.68/x
3. Step 3: Cross multiply
   9,150.09x = 12,628.29 × 5,374.68
4. Step 4: Simplify right side
   9,150.09x = 67,873,017.70
5. Step 5: Solve for x
   x = 67,873,017.70/9,150.09
6. Step 6: Final answer
   x = 7,417.74