Finding the Fourth Proportional to 9,056.40, 12,497.46 and 5,076.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,056.40 : 12,497.46 = 5,076.78 : x
2. Step 2: Convert to fraction form
   9,056.40/12,497.46 = 5,076.78/x
3. Step 3: Cross multiply
   9,056.40x = 12,497.46 × 5,076.78
4. Step 4: Simplify right side
   9,056.40x = 63,446,854.98
5. Step 5: Solve for x
   x = 63,446,854.98/9,056.40
6. Step 6: Final answer
   x = 7,005.75