Finding the Fourth Proportional to 78,559.97, 108,412.56 and 42,749.97

Step by Step Solution

1. Step 1: Write the proportion equation
   78,559.97 : 108,412.56 = 42,749.97 : x
2. Step 2: Convert to fraction form
   78,559.97/108,412.56 = 42,749.97/x
3. Step 3: Cross multiply
   78,559.97x = 108,412.56 × 42,749.97
4. Step 4: Simplify right side
   78,559.97x = 4,634,633,687.62
5. Step 5: Solve for x
   x = 4,634,633,687.62/78,559.97
6. Step 6: Final answer
   x = 58,994.85