Finding the Fourth Proportional to 81,857, 112,963.20 and 46,046.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,857 : 112,963.20 = 46,046.72 : x
2. Step 2: Convert to fraction form
   81,857/112,963.20 = 46,046.72/x
3. Step 3: Cross multiply
   81,857x = 112,963.20 × 46,046.72
4. Step 4: Simplify right side
   81,857x = 5,201,584,840.70
5. Step 5: Solve for x
   x = 5,201,584,840.70/81,857
6. Step 6: Final answer
   x = 63,544.78