Finding the Fourth Proportional to 6,891.51, 9,510.29 and 3,747.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,891.51 : 9,510.29 = 3,747.69 : x
2. Step 2: Convert to fraction form
   6,891.51/9,510.29 = 3,747.69/x
3. Step 3: Cross multiply
   6,891.51x = 9,510.29 × 3,747.69
4. Step 4: Simplify right side
   6,891.51x = 35,641,618.73
5. Step 5: Solve for x
   x = 35,641,618.73/6,891.51
6. Step 6: Final answer
   x = 5,171.82