Finding the Fourth Proportional to 45,605.78, 62,790.82 and 40,223.71

Step by Step Solution

1. Step 1: Write the proportion equation
   45,605.78 : 62,790.82 = 40,223.71 : x
2. Step 2: Convert to fraction form
   45,605.78/62,790.82 = 40,223.71/x
3. Step 3: Cross multiply
   45,605.78x = 62,790.82 × 40,223.71
4. Step 4: Simplify right side
   45,605.78x = 2,525,680,002.00
5. Step 5: Solve for x
   x = 2,525,680,002.00/45,605.78
6. Step 6: Final answer
   x = 55,380.69