Finding the Fourth Proportional to 78,087.73, 107,760.91 and 42,277.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,087.73 : 107,760.91 = 42,277.73 : x
2. Step 2: Convert to fraction form
   78,087.73/107,760.91 = 42,277.73/x
3. Step 3: Cross multiply
   78,087.73x = 107,760.91 × 42,277.73
4. Step 4: Simplify right side
   78,087.73x = 4,555,886,657.53
5. Step 5: Solve for x
   x = 4,555,886,657.53/78,087.73
6. Step 6: Final answer
   x = 58,343.18