Finding the Fourth Proportional to 9,042.40, 12,478.56 and 5,063.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042.40 : 12,478.56 = 5,063.88 : x
2. Step 2: Convert to fraction form
   9,042.40/12,478.56 = 5,063.88/x
3. Step 3: Cross multiply
   9,042.40x = 12,478.56 × 5,063.88
4. Step 4: Simplify right side
   9,042.40x = 63,189,930.41
5. Step 5: Solve for x
   x = 63,189,930.41/9,042.40
6. Step 6: Final answer
   x = 6,988.18