Finding the Fourth Proportional to 10,201.86, 14,078.72 and 5,725.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,201.86 : 14,078.72 = 5,725.35 : x
2. Step 2: Convert to fraction form
   10,201.86/14,078.72 = 5,725.35/x
3. Step 3: Cross multiply
   10,201.86x = 14,078.72 × 5,725.35
4. Step 4: Simplify right side
   10,201.86x = 80,605,570.93
5. Step 5: Solve for x
   x = 80,605,570.93/10,201.86
6. Step 6: Final answer
   x = 7,901.07