Finding the Fourth Proportional to 22,433.86, 30,958.81 and 13,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,433.86 : 30,958.81 = 13,486.50 : x
2. Step 2: Convert to fraction form
   22,433.86/30,958.81 = 13,486.50/x
3. Step 3: Cross multiply
   22,433.86x = 30,958.81 × 13,486.50
4. Step 4: Simplify right side
   22,433.86x = 417,525,957.35
5. Step 5: Solve for x
   x = 417,525,957.35/22,433.86
6. Step 6: Final answer
   x = 18,611.42