Finding the Fourth Proportional to 9,056.88, 12,495.55 and 5,279.19

Step by Step Solution

1. Step 1: Write the proportion equation
   9,056.88 : 12,495.55 = 5,279.19 : x
2. Step 2: Convert to fraction form
   9,056.88/12,495.55 = 5,279.19/x
3. Step 3: Cross multiply
   9,056.88x = 12,495.55 × 5,279.19
4. Step 4: Simplify right side
   9,056.88x = 65,966,369.41
5. Step 5: Solve for x
   x = 65,966,369.41/9,056.88
6. Step 6: Final answer
   x = 7,283.56