Finding the Fourth Proportional to 10,030.28, 13,842.81 and 5,781.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,030.28 : 13,842.81 = 5,781.49 : x
2. Step 2: Convert to fraction form
   10,030.28/13,842.81 = 5,781.49/x
3. Step 3: Cross multiply
   10,030.28x = 13,842.81 × 5,781.49
4. Step 4: Simplify right side
   10,030.28x = 80,032,067.59
5. Step 5: Solve for x
   x = 80,032,067.59/10,030.28
6. Step 6: Final answer
   x = 7,979.05