Finding the Fourth Proportional to 31,709.34, 43,758.78 and 18,280.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,709.34 : 43,758.78 = 18,280.53 : x
2. Step 2: Convert to fraction form
   31,709.34/43,758.78 = 18,280.53/x
3. Step 3: Cross multiply
   31,709.34x = 43,758.78 × 18,280.53
4. Step 4: Simplify right side
   31,709.34x = 799,933,690.55
5. Step 5: Solve for x
   x = 799,933,690.55/31,709.34
6. Step 6: Final answer
   x = 25,227.07