Finding the Fourth Proportional to 76,662.44, 105,796.22 and 42,208.22

Step by Step Solution

1. Step 1: Write the proportion equation
   76,662.44 : 105,796.22 = 42,208.22 : x
2. Step 2: Convert to fraction form
   76,662.44/105,796.22 = 42,208.22/x
3. Step 3: Cross multiply
   76,662.44x = 105,796.22 × 42,208.22
4. Step 4: Simplify right side
   76,662.44x = 4,465,470,128.93
5. Step 5: Solve for x
   x = 4,465,470,128.93/76,662.44
6. Step 6: Final answer
   x = 58,248.47