Finding the Fourth Proportional to 77,859.94, 107,446.69 and 42,049.96

Step by Step Solution

1. Step 1: Write the proportion equation
   77,859.94 : 107,446.69 = 42,049.96 : x
2. Step 2: Convert to fraction form
   77,859.94/107,446.69 = 42,049.96/x
3. Step 3: Cross multiply
   77,859.94x = 107,446.69 × 42,049.96
4. Step 4: Simplify right side
   77,859.94x = 4,518,129,016.63
5. Step 5: Solve for x
   x = 4,518,129,016.63/77,859.94
6. Step 6: Final answer
   x = 58,028.93