Finding the Fourth Proportional to 5,404.01, 8,109.67 and 2,116.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.01 : 8,109.67 = 2,116.70 : x
2. Step 2: Convert to fraction form
   5,404.01/8,109.67 = 2,116.70/x
3. Step 3: Cross multiply
   5,404.01x = 8,109.67 × 2,116.70
4. Step 4: Simplify right side
   5,404.01x = 17,165,738.49
5. Step 5: Solve for x
   x = 17,165,738.49/5,404.01
6. Step 6: Final answer
   x = 3,176.48