Finding the Fourth Proportional to 5,155.79, 7,736.72 and 4,737.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,155.79 : 7,736.72 = 4,737.42 : x
2. Step 2: Convert to fraction form
   5,155.79/7,736.72 = 4,737.42/x
3. Step 3: Cross multiply
   5,155.79x = 7,736.72 × 4,737.42
4. Step 4: Simplify right side
   5,155.79x = 36,652,068.38
5. Step 5: Solve for x
   x = 36,652,068.38/5,155.79
6. Step 6: Final answer
   x = 7,108.92