Finding the Fourth Proportional to 13,086.72, 19,638.39 and 4,765.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,086.72 : 19,638.39 = 4,765.92 : x
2. Step 2: Convert to fraction form
   13,086.72/19,638.39 = 4,765.92/x
3. Step 3: Cross multiply
   13,086.72x = 19,638.39 × 4,765.92
4. Step 4: Simplify right side
   13,086.72x = 93,594,995.67
5. Step 5: Solve for x
   x = 93,594,995.67/13,086.72
6. Step 6: Final answer
   x = 7,151.91