Finding the Fourth Proportional to 78,077.45, 107,747.74 and 42,268.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,077.45 : 107,747.74 = 42,268.23 : x
2. Step 2: Convert to fraction form
   78,077.45/107,747.74 = 42,268.23/x
3. Step 3: Cross multiply
   78,077.45x = 107,747.74 × 42,268.23
4. Step 4: Simplify right side
   78,077.45x = 4,554,305,611.89
5. Step 5: Solve for x
   x = 4,554,305,611.89/78,077.45
6. Step 6: Final answer
   x = 58,330.62