Finding the Fourth Proportional to 31,722.53, 43,776.86 and 18,293.67

Step by Step Solution

1. Step 1: Write the proportion equation
   31,722.53 : 43,776.86 = 18,293.67 : x
2. Step 2: Convert to fraction form
   31,722.53/43,776.86 = 18,293.67/x
3. Step 3: Cross multiply
   31,722.53x = 43,776.86 × 18,293.67
4. Step 4: Simplify right side
   31,722.53x = 800,839,339.01
5. Step 5: Solve for x
   x = 800,839,339.01/31,722.53
6. Step 6: Final answer
   x = 25,245.13