Finding the Fourth Proportional to 78,055.88, 107,716.91 and 42,245.89

Step by Step Solution

1. Step 1: Write the proportion equation
   78,055.88 : 107,716.91 = 42,245.89 : x
2. Step 2: Convert to fraction form
   78,055.88/107,716.91 = 42,245.89/x
3. Step 3: Cross multiply
   78,055.88x = 107,716.91 × 42,245.89
4. Step 4: Simplify right side
   78,055.88x = 4,550,596,250.48
5. Step 5: Solve for x
   x = 4,550,596,250.48/78,055.88
6. Step 6: Final answer
   x = 58,299.22