Finding the Fourth Proportional to 8,924.22, 12,315.42 and 4,945.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,924.22 : 12,315.42 = 4,945.32 : x
2. Step 2: Convert to fraction form
   8,924.22/12,315.42 = 4,945.32/x
3. Step 3: Cross multiply
   8,924.22x = 12,315.42 × 4,945.32
4. Step 4: Simplify right side
   8,924.22x = 60,903,692.83
5. Step 5: Solve for x
   x = 60,903,692.83/8,924.22
6. Step 6: Final answer
   x = 6,824.54