Finding the Fourth Proportional to 9,056.51, 12,495.03 and 5,278.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,056.51 : 12,495.03 = 5,278.82 : x
2. Step 2: Convert to fraction form
   9,056.51/12,495.03 = 5,278.82/x
3. Step 3: Cross multiply
   9,056.51x = 12,495.03 × 5,278.82
4. Step 4: Simplify right side
   9,056.51x = 65,958,951.79
5. Step 5: Solve for x
   x = 65,958,951.79/9,056.51
6. Step 6: Final answer
   x = 7,283.05