Finding the Fourth Proportional to 12,942.70, 17,860.83 and 7,353.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,942.70 : 17,860.83 = 7,353.70 : x
2. Step 2: Convert to fraction form
   12,942.70/17,860.83 = 7,353.70/x
3. Step 3: Cross multiply
   12,942.70x = 17,860.83 × 7,353.70
4. Step 4: Simplify right side
   12,942.70x = 131,343,096.27
5. Step 5: Solve for x
   x = 131,343,096.27/12,942.70
6. Step 6: Final answer
   x = 10,148.05