Finding the Fourth Proportional to 13,074.48, 18,045.18 and 7,772.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,074.48 : 18,045.18 = 7,772.22 : x
2. Step 2: Convert to fraction form
   13,074.48/18,045.18 = 7,772.22/x
3. Step 3: Cross multiply
   13,074.48x = 18,045.18 × 7,772.22
4. Step 4: Simplify right side
   13,074.48x = 140,251,108.90
5. Step 5: Solve for x
   x = 140,251,108.90/13,074.48
6. Step 6: Final answer
   x = 10,727.09