Finding the Fourth Proportional to 76,608.38, 105,709.46 and 42,610.12

Step by Step Solution

1. Step 1: Write the proportion equation
   76,608.38 : 105,709.46 = 42,610.12 : x
2. Step 2: Convert to fraction form
   76,608.38/105,709.46 = 42,610.12/x
3. Step 3: Cross multiply
   76,608.38x = 105,709.46 × 42,610.12
4. Step 4: Simplify right side
   76,608.38x = 4,504,292,298.41
5. Step 5: Solve for x
   x = 4,504,292,298.41/76,608.38
6. Step 6: Final answer
   x = 58,796.34