Finding the Fourth Proportional to 9,015.67, 12,443.12 and 5,661.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,015.67 : 12,443.12 = 5,661.37 : x
2. Step 2: Convert to fraction form
   9,015.67/12,443.12 = 5,661.37/x
3. Step 3: Cross multiply
   9,015.67x = 12,443.12 × 5,661.37
4. Step 4: Simplify right side
   9,015.67x = 70,445,106.27
5. Step 5: Solve for x
   x = 70,445,106.27/9,015.67
6. Step 6: Final answer
   x = 7,813.63