Finding the Fourth Proportional to 5,155.72, 7,736.72 and 4,737.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,155.72 : 7,736.72 = 4,737.49 : x
2. Step 2: Convert to fraction form
   5,155.72/7,736.72 = 4,737.49/x
3. Step 3: Cross multiply
   5,155.72x = 7,736.72 × 4,737.49
4. Step 4: Simplify right side
   5,155.72x = 36,652,590.60
5. Step 5: Solve for x
   x = 36,652,590.60/5,155.72
6. Step 6: Final answer
   x = 7,109.12