Finding the Fourth Proportional to 11,123.72, 16,698.72 and 4,555.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,123.72 : 16,698.72 = 4,555.16 : x
2. Step 2: Convert to fraction form
   11,123.72/16,698.72 = 4,555.16/x
3. Step 3: Cross multiply
   11,123.72x = 16,698.72 × 4,555.16
4. Step 4: Simplify right side
   11,123.72x = 76,065,341.40
5. Step 5: Solve for x
   x = 76,065,341.40/11,123.72
6. Step 6: Final answer
   x = 6,838.12