Finding the Fourth Proportional to 78,078.04, 107,747.73 and 42,268.05

Step by Step Solution

1. Step 1: Write the proportion equation
   78,078.04 : 107,747.73 = 42,268.05 : x
2. Step 2: Convert to fraction form
   78,078.04/107,747.73 = 42,268.05/x
3. Step 3: Cross multiply
   78,078.04x = 107,747.73 × 42,268.05
4. Step 4: Simplify right side
   78,078.04x = 4,554,286,439.03
5. Step 5: Solve for x
   x = 4,554,286,439.03/78,078.04
6. Step 6: Final answer
   x = 58,329.93