Finding the Fourth Proportional to 9,042.17, 12,478.06 and 5,063.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.17 : 12,478.06 = 5,063.42 : x
2. Step 2: Convert to fraction form
   9,042.17/12,478.06 = 5,063.42/x
3. Step 3: Cross multiply
   9,042.17x = 12,478.06 × 5,063.42
4. Step 4: Simplify right side
   9,042.17x = 63,181,658.57
5. Step 5: Solve for x
   x = 63,181,658.57/9,042.17
6. Step 6: Final answer
   x = 6,987.44