Finding the Fourth Proportional to 9,042.47, 12,478.88 and 5,063.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.47 : 12,478.88 = 5,063.68 : x
2. Step 2: Convert to fraction form
   9,042.47/12,478.88 = 5,063.68/x
3. Step 3: Cross multiply
   9,042.47x = 12,478.88 × 5,063.68
4. Step 4: Simplify right side
   9,042.47x = 63,188,967.37
5. Step 5: Solve for x
   x = 63,188,967.37/9,042.47
6. Step 6: Final answer
   x = 6,988.02