Finding the Fourth Proportional to 10,623.86, 14,660.91 and 5,909.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,623.86 : 14,660.91 = 5,909.06 : x
2. Step 2: Convert to fraction form
   10,623.86/14,660.91 = 5,909.06/x
3. Step 3: Cross multiply
   10,623.86x = 14,660.91 × 5,909.06
4. Step 4: Simplify right side
   10,623.86x = 86,632,123.54
5. Step 5: Solve for x
   x = 86,632,123.54/10,623.86
6. Step 6: Final answer
   x = 8,154.49