Finding the Fourth Proportional to 9,042.66, 12,478.73 and 5,063.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.66 : 12,478.73 = 5,063.74 : x
2. Step 2: Convert to fraction form
   9,042.66/12,478.73 = 5,063.74/x
3. Step 3: Cross multiply
   9,042.66x = 12,478.73 × 5,063.74
4. Step 4: Simplify right side
   9,042.66x = 63,188,987.73
5. Step 5: Solve for x
   x = 63,188,987.73/9,042.66
6. Step 6: Final answer
   x = 6,987.88