Finding the Fourth Proportional to 10,561.25, 14,574.30 and 5,781.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,561.25 : 14,574.30 = 5,781.19 : x
2. Step 2: Convert to fraction form
   10,561.25/14,574.30 = 5,781.19/x
3. Step 3: Cross multiply
   10,561.25x = 14,574.30 × 5,781.19
4. Step 4: Simplify right side
   10,561.25x = 84,256,797.42
5. Step 5: Solve for x
   x = 84,256,797.42/10,561.25
6. Step 6: Final answer
   x = 7,977.92