Finding the Fourth Proportional to 13,114.76, 18,098.57 and 7,146.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,114.76 : 18,098.57 = 7,146.42 : x
2. Step 2: Convert to fraction form
   13,114.76/18,098.57 = 7,146.42/x
3. Step 3: Cross multiply
   13,114.76x = 18,098.57 × 7,146.42
4. Step 4: Simplify right side
   13,114.76x = 129,340,000.49
5. Step 5: Solve for x
   x = 129,340,000.49/13,114.76
6. Step 6: Final answer
   x = 9,862.17