Finding the Fourth Proportional to 9,995.31, 14,979.42 and 5,542.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,995.31 : 14,979.42 = 5,542.47 : x
2. Step 2: Convert to fraction form
   9,995.31/14,979.42 = 5,542.47/x
3. Step 3: Cross multiply
   9,995.31x = 14,979.42 × 5,542.47
4. Step 4: Simplify right side
   9,995.31x = 83,022,985.97
5. Step 5: Solve for x
   x = 83,022,985.97/9,995.31
6. Step 6: Final answer
   x = 8,306.19