Finding the Fourth Proportional to 5,445.34, 8,168.37 and 2,158.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,445.34 : 8,168.37 = 2,158.42 : x
2. Step 2: Convert to fraction form
   5,445.34/8,168.37 = 2,158.42/x
3. Step 3: Cross multiply
   5,445.34x = 8,168.37 × 2,158.42
4. Step 4: Simplify right side
   5,445.34x = 17,630,773.18
5. Step 5: Solve for x
   x = 17,630,773.18/5,445.34
6. Step 6: Final answer
   x = 3,237.77