Finding the Fourth Proportional to 10,749.98, 16,123.68 and 2,957.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,749.98 : 16,123.68 = 2,957.78 : x
2. Step 2: Convert to fraction form
   10,749.98/16,123.68 = 2,957.78/x
3. Step 3: Cross multiply
   10,749.98x = 16,123.68 × 2,957.78
4. Step 4: Simplify right side
   10,749.98x = 47,690,298.23
5. Step 5: Solve for x
   x = 47,690,298.23/10,749.98
6. Step 6: Final answer
   x = 4,436.32