Finding the Fourth Proportional to 9,016.48, 12,442.83 and 5,431.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.48 : 12,442.83 = 5,431.87 : x
2. Step 2: Convert to fraction form
   9,016.48/12,442.83 = 5,431.87/x
3. Step 3: Cross multiply
   9,016.48x = 12,442.83 × 5,431.87
4. Step 4: Simplify right side
   9,016.48x = 67,587,834.99
5. Step 5: Solve for x
   x = 67,587,834.99/9,016.48
6. Step 6: Final answer
   x = 7,496.03