Finding the Fourth Proportional to 81,751.72, 112,819.38 and 45,939.58

Step by Step Solution

1. Step 1: Write the proportion equation
   81,751.72 : 112,819.38 = 45,939.58 : x
2. Step 2: Convert to fraction form
   81,751.72/112,819.38 = 45,939.58/x
3. Step 3: Cross multiply
   81,751.72x = 112,819.38 × 45,939.58
4. Step 4: Simplify right side
   81,751.72x = 5,182,874,933.06
5. Step 5: Solve for x
   x = 5,182,874,933.06/81,751.72
6. Step 6: Final answer
   x = 63,397.75