Finding the Fourth Proportional to 9,056.39, 12,498.33 and 5,078.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,056.39 : 12,498.33 = 5,078.76 : x
2. Step 2: Convert to fraction form
   9,056.39/12,498.33 = 5,078.76/x
3. Step 3: Cross multiply
   9,056.39x = 12,498.33 × 5,078.76
4. Step 4: Simplify right side
   9,056.39x = 63,476,018.47
5. Step 5: Solve for x
   x = 63,476,018.47/9,056.39
6. Step 6: Final answer
   x = 7,008.98