Finding the Fourth Proportional to 10,078.20, 13,906.36 and 5,601.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,078.20 : 13,906.36 = 5,601.94 : x
2. Step 2: Convert to fraction form
   10,078.20/13,906.36 = 5,601.94/x
3. Step 3: Cross multiply
   10,078.20x = 13,906.36 × 5,601.94
4. Step 4: Simplify right side
   10,078.20x = 77,902,594.34
5. Step 5: Solve for x
   x = 77,902,594.34/10,078.20
6. Step 6: Final answer
   x = 7,729.81