Finding the Fourth Proportional to 9,054.17, 12,494.75 and 5,517.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,054.17 : 12,494.75 = 5,517.39 : x
2. Step 2: Convert to fraction form
   9,054.17/12,494.75 = 5,517.39/x
3. Step 3: Cross multiply
   9,054.17x = 12,494.75 × 5,517.39
4. Step 4: Simplify right side
   9,054.17x = 68,938,381.12
5. Step 5: Solve for x
   x = 68,938,381.12/9,054.17
6. Step 6: Final answer
   x = 7,613.99