Finding the Fourth Proportional to 13,179.10, 19,762.89 and 3,942.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,179.10 : 19,762.89 = 3,942.94 : x
2. Step 2: Convert to fraction form
   13,179.10/19,762.89 = 3,942.94/x
3. Step 3: Cross multiply
   13,179.10x = 19,762.89 × 3,942.94
4. Step 4: Simplify right side
   13,179.10x = 77,923,889.50
5. Step 5: Solve for x
   x = 77,923,889.50/13,179.10
6. Step 6: Final answer
   x = 5,912.69