Finding the Fourth Proportional to 10,777.57, 16,168.17 and 4,934.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,777.57 : 16,168.17 = 4,934.63 : x
2. Step 2: Convert to fraction form
   10,777.57/16,168.17 = 4,934.63/x
3. Step 3: Cross multiply
   10,777.57x = 16,168.17 × 4,934.63
4. Step 4: Simplify right side
   10,777.57x = 79,783,936.73
5. Step 5: Solve for x
   x = 79,783,936.73/10,777.57
6. Step 6: Final answer
   x = 7,402.78