Finding the Fourth Proportional to 78,804.18, 108,749.61 and 42,994.21

Step by Step Solution

1. Step 1: Write the proportion equation
   78,804.18 : 108,749.61 = 42,994.21 : x
2. Step 2: Convert to fraction form
   78,804.18/108,749.61 = 42,994.21/x
3. Step 3: Cross multiply
   78,804.18x = 108,749.61 × 42,994.21
4. Step 4: Simplify right side
   78,804.18x = 4,675,603,462.27
5. Step 5: Solve for x
   x = 4,675,603,462.27/78,804.18
6. Step 6: Final answer
   x = 59,331.93