Finding the Fourth Proportional to 9,098.60, 12,555.03 and 5,119.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,098.60 : 12,555.03 = 5,119.61 : x
2. Step 2: Convert to fraction form
   9,098.60/12,555.03 = 5,119.61/x
3. Step 3: Cross multiply
   9,098.60x = 12,555.03 × 5,119.61
4. Step 4: Simplify right side
   9,098.60x = 64,276,813.56
5. Step 5: Solve for x
   x = 64,276,813.56/9,098.60
6. Step 6: Final answer
   x = 7,064.48