Finding the Fourth Proportional to 9,056.48, 12,498.50 and 5,078.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,056.48 : 12,498.50 = 5,078.18 : x
2. Step 2: Convert to fraction form
   9,056.48/12,498.50 = 5,078.18/x
3. Step 3: Cross multiply
   9,056.48x = 12,498.50 × 5,078.18
4. Step 4: Simplify right side
   9,056.48x = 63,469,676.67
5. Step 5: Solve for x
   x = 63,469,676.67/9,056.48
6. Step 6: Final answer
   x = 7,008.21