Finding the Fourth Proportional to 13,092.86, 18,066.79 and 7,786.65

Step by Step Solution

1. Step 1: Write the proportion equation
   13,092.86 : 18,066.79 = 7,786.65 : x
2. Step 2: Convert to fraction form
   13,092.86/18,066.79 = 7,786.65/x
3. Step 3: Cross multiply
   13,092.86x = 18,066.79 × 7,786.65
4. Step 4: Simplify right side
   13,092.86x = 140,679,750.89
5. Step 5: Solve for x
   x = 140,679,750.89/13,092.86
6. Step 6: Final answer
   x = 10,744.77