Finding the Fourth Proportional to 9,790.59, 14,686.56 and 3,947.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,790.59 : 14,686.56 = 3,947.25 : x
2. Step 2: Convert to fraction form
   9,790.59/14,686.56 = 3,947.25/x
3. Step 3: Cross multiply
   9,790.59x = 14,686.56 × 3,947.25
4. Step 4: Simplify right side
   9,790.59x = 57,971,523.96
5. Step 5: Solve for x
   x = 57,971,523.96/9,790.59
6. Step 6: Final answer
   x = 5,921.15