Finding the Fourth Proportional to 13,300.83, 19,951.11 and 3,940.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.83 : 19,951.11 = 3,940.92 : x
2. Step 2: Convert to fraction form
   13,300.83/19,951.11 = 3,940.92/x
3. Step 3: Cross multiply
   13,300.83x = 19,951.11 × 3,940.92
4. Step 4: Simplify right side
   13,300.83x = 78,625,728.42
5. Step 5: Solve for x
   x = 78,625,728.42/13,300.83
6. Step 6: Final answer
   x = 5,911.34