Finding the Fourth Proportional to 81,790.31, 112,867.33 and 45,979.56

Step by Step Solution

1. Step 1: Write the proportion equation
   81,790.31 : 112,867.33 = 45,979.56 : x
2. Step 2: Convert to fraction form
   81,790.31/112,867.33 = 45,979.56/x
3. Step 3: Cross multiply
   81,790.31x = 112,867.33 × 45,979.56
4. Step 4: Simplify right side
   81,790.31x = 5,189,590,171.77
5. Step 5: Solve for x
   x = 5,189,590,171.77/81,790.31
6. Step 6: Final answer
   x = 63,449.94