Finding the Fourth Proportional to 81,949.40, 113,092.30 and 46,140.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,949.40 : 113,092.30 = 46,140.72 : x
2. Step 2: Convert to fraction form
   81,949.40/113,092.30 = 46,140.72/x
3. Step 3: Cross multiply
   81,949.40x = 113,092.30 × 46,140.72
4. Step 4: Simplify right side
   81,949.40x = 5,218,160,148.46
5. Step 5: Solve for x
   x = 5,218,160,148.46/81,949.40
6. Step 6: Final answer
   x = 63,675.39