Finding the Fourth Proportional to 13,333.50, 18,400.23 and 7,744.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,333.50 : 18,400.23 = 7,744.86 : x
2. Step 2: Convert to fraction form
   13,333.50/18,400.23 = 7,744.86/x
3. Step 3: Cross multiply
   13,333.50x = 18,400.23 × 7,744.86
4. Step 4: Simplify right side
   13,333.50x = 142,507,205.32
5. Step 5: Solve for x
   x = 142,507,205.32/13,333.50
6. Step 6: Final answer
   x = 10,687.91