Finding the Fourth Proportional to 9,781.80, 14,674.56 and 3,542.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,781.80 : 14,674.56 = 3,542.08 : x
2. Step 2: Convert to fraction form
   9,781.80/14,674.56 = 3,542.08/x
3. Step 3: Cross multiply
   9,781.80x = 14,674.56 × 3,542.08
4. Step 4: Simplify right side
   9,781.80x = 51,978,465.48
5. Step 5: Solve for x
   x = 51,978,465.48/9,781.80
6. Step 6: Final answer
   x = 5,313.79