Finding the Fourth Proportional to 9,161.61, 12,642.78 and 5,073.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,161.61 : 12,642.78 = 5,073.27 : x
2. Step 2: Convert to fraction form
   9,161.61/12,642.78 = 5,073.27/x
3. Step 3: Cross multiply
   9,161.61x = 12,642.78 × 5,073.27
4. Step 4: Simplify right side
   9,161.61x = 64,140,236.49
5. Step 5: Solve for x
   x = 64,140,236.49/9,161.61
6. Step 6: Final answer
   x = 7,000.98