Finding the Fourth Proportional to 45,643.54, 62,953.38 and 39,280.72

Step by Step Solution

1. Step 1: Write the proportion equation
   45,643.54 : 62,953.38 = 39,280.72 : x
2. Step 2: Convert to fraction form
   45,643.54/62,953.38 = 39,280.72/x
3. Step 3: Cross multiply
   45,643.54x = 62,953.38 × 39,280.72
4. Step 4: Simplify right side
   45,643.54x = 2,472,854,092.83
5. Step 5: Solve for x
   x = 2,472,854,092.83/45,643.54
6. Step 6: Final answer
   x = 54,177.53