Finding the Fourth Proportional to 9,098.55, 12,555.47 and 5,119.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,098.55 : 12,555.47 = 5,119.49 : x
2. Step 2: Convert to fraction form
   9,098.55/12,555.47 = 5,119.49/x
3. Step 3: Cross multiply
   9,098.55x = 12,555.47 × 5,119.49
4. Step 4: Simplify right side
   9,098.55x = 64,277,647.30
5. Step 5: Solve for x
   x = 64,277,647.30/9,098.55
6. Step 6: Final answer
   x = 7,064.60