Finding the Fourth Proportional to 9,150.31, 12,625.32 and 5,373.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.31 : 12,625.32 = 5,373.28 : x
2. Step 2: Convert to fraction form
   9,150.31/12,625.32 = 5,373.28/x
3. Step 3: Cross multiply
   9,150.31x = 12,625.32 × 5,373.28
4. Step 4: Simplify right side
   9,150.31x = 67,839,379.45
5. Step 5: Solve for x
   x = 67,839,379.45/9,150.31
6. Step 6: Final answer
   x = 7,413.89