Finding the Fourth Proportional to 9,098.84, 12,557.59 and 5,120.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,098.84 : 12,557.59 = 5,120.75 : x
2. Step 2: Convert to fraction form
   9,098.84/12,557.59 = 5,120.75/x
3. Step 3: Cross multiply
   9,098.84x = 12,557.59 × 5,120.75
4. Step 4: Simplify right side
   9,098.84x = 64,304,297.58
5. Step 5: Solve for x
   x = 64,304,297.58/9,098.84
6. Step 6: Final answer
   x = 7,067.31