Finding the Fourth Proportional to 5,631.78, 8,436.72 and 3,168.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,631.78 : 8,436.72 = 3,168.22 : x
2. Step 2: Convert to fraction form
   5,631.78/8,436.72 = 3,168.22/x
3. Step 3: Cross multiply
   5,631.78x = 8,436.72 × 3,168.22
4. Step 4: Simplify right side
   5,631.78x = 26,729,385.04
5. Step 5: Solve for x
   x = 26,729,385.04/5,631.78
6. Step 6: Final answer
   x = 4,746.17