Finding the Fourth Proportional to 45,321.50, 67,983.59 and 21,631.55

Step by Step Solution

1. Step 1: Write the proportion equation
   45,321.50 : 67,983.59 = 21,631.55 : x
2. Step 2: Convert to fraction form
   45,321.50/67,983.59 = 21,631.55/x
3. Step 3: Cross multiply
   45,321.50x = 67,983.59 × 21,631.55
4. Step 4: Simplify right side
   45,321.50x = 1,470,590,140.43
5. Step 5: Solve for x
   x = 1,470,590,140.43/45,321.50
6. Step 6: Final answer
   x = 32,447.96