Finding the Fourth Proportional to 11,106.72, 16,658.64 and 2,898.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,106.72 : 16,658.64 = 2,898.72 : x
2. Step 2: Convert to fraction form
   11,106.72/16,658.64 = 2,898.72/x
3. Step 3: Cross multiply
   11,106.72x = 16,658.64 × 2,898.72
4. Step 4: Simplify right side
   11,106.72x = 48,288,732.94
5. Step 5: Solve for x
   x = 48,288,732.94/11,106.72
6. Step 6: Final answer
   x = 4,347.70