Finding the Fourth Proportional to 5,393.69, 8,091.56 and 2,106.58

Step by Step Solution

1. Step 1: Write the proportion equation
   5,393.69 : 8,091.56 = 2,106.58 : x
2. Step 2: Convert to fraction form
   5,393.69/8,091.56 = 2,106.58/x
3. Step 3: Cross multiply
   5,393.69x = 8,091.56 × 2,106.58
4. Step 4: Simplify right side
   5,393.69x = 17,045,518.46
5. Step 5: Solve for x
   x = 17,045,518.46/5,393.69
6. Step 6: Final answer
   x = 3,160.27