Finding the Fourth Proportional to 78,077.95, 107,748.43 and 42,268.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,077.95 : 107,748.43 = 42,268.73 : x
2. Step 2: Convert to fraction form
   78,077.95/107,748.43 = 42,268.73/x
3. Step 3: Cross multiply
   78,077.95x = 107,748.43 × 42,268.73
4. Step 4: Simplify right side
   78,077.95x = 4,554,388,651.18
5. Step 5: Solve for x
   x = 4,554,388,651.18/78,077.95
6. Step 6: Final answer
   x = 58,331.31