Finding the Fourth Proportional to 9,098.58, 12,555.96 and 5,119.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,098.58 : 12,555.96 = 5,119.61 : x
2. Step 2: Convert to fraction form
   9,098.58/12,555.96 = 5,119.61/x
3. Step 3: Cross multiply
   9,098.58x = 12,555.96 × 5,119.61
4. Step 4: Simplify right side
   9,098.58x = 64,281,618.38
5. Step 5: Solve for x
   x = 64,281,618.38/9,098.58
6. Step 6: Final answer
   x = 7,065.02