Finding the Fourth Proportional to 57,705.22, 79,661.37 and 45,730.18

Step by Step Solution

1. Step 1: Write the proportion equation
   57,705.22 : 79,661.37 = 45,730.18 : x
2. Step 2: Convert to fraction form
   57,705.22/79,661.37 = 45,730.18/x
3. Step 3: Cross multiply
   57,705.22x = 79,661.37 × 45,730.18
4. Step 4: Simplify right side
   57,705.22x = 3,642,928,789.15
5. Step 5: Solve for x
   x = 3,642,928,789.15/57,705.22
6. Step 6: Final answer
   x = 63,129.97