Finding the Fourth Proportional to 45,223.42, 62,428.71 and 39,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,223.42 : 62,428.71 = 39,149.50 : x
2. Step 2: Convert to fraction form
   45,223.42/62,428.71 = 39,149.50/x
3. Step 3: Cross multiply
   45,223.42x = 62,428.71 × 39,149.50
4. Step 4: Simplify right side
   45,223.42x = 2,444,052,782.15
5. Step 5: Solve for x
   x = 2,444,052,782.15/45,223.42
6. Step 6: Final answer
   x = 54,043.96