Finding the Fourth Proportional to 9,119.98, 12,585.72 and 5,141.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,119.98 : 12,585.72 = 5,141.29 : x
2. Step 2: Convert to fraction form
   9,119.98/12,585.72 = 5,141.29/x
3. Step 3: Cross multiply
   9,119.98x = 12,585.72 × 5,141.29
4. Step 4: Simplify right side
   9,119.98x = 64,706,836.38
5. Step 5: Solve for x
   x = 64,706,836.38/9,119.98
6. Step 6: Final answer
   x = 7,095.06