Finding the Fourth Proportional to 9,156.69, 12,631.87 and 5,328.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156.69 : 12,631.87 = 5,328.33 : x
2. Step 2: Convert to fraction form
   9,156.69/12,631.87 = 5,328.33/x
3. Step 3: Cross multiply
   9,156.69x = 12,631.87 × 5,328.33
4. Step 4: Simplify right side
   9,156.69x = 67,306,701.20
5. Step 5: Solve for x
   x = 67,306,701.20/9,156.69
6. Step 6: Final answer
   x = 7,350.55