Finding the Fourth Proportional to 78,804.05, 108,749.44 and 42,994.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,804.05 : 108,749.44 = 42,994.09 : x
2. Step 2: Convert to fraction form
   78,804.05/108,749.44 = 42,994.09/x
3. Step 3: Cross multiply
   78,804.05x = 108,749.44 × 42,994.09
4. Step 4: Simplify right side
   78,804.05x = 4,675,582,452.09
5. Step 5: Solve for x
   x = 4,675,582,452.09/78,804.05
6. Step 6: Final answer
   x = 59,331.75