Finding the Fourth Proportional to 10,698.57, 16,043.76 and 3,677.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,698.57 : 16,043.76 = 3,677.28 : x
2. Step 2: Convert to fraction form
   10,698.57/16,043.76 = 3,677.28/x
3. Step 3: Cross multiply
   10,698.57x = 16,043.76 × 3,677.28
4. Step 4: Simplify right side
   10,698.57x = 58,997,397.77
5. Step 5: Solve for x
   x = 58,997,397.77/10,698.57
6. Step 6: Final answer
   x = 5,514.51