Finding the Fourth Proportional to 78,707.94, 108,619.25 and 42,900.27

Step by Step Solution

1. Step 1: Write the proportion equation
   78,707.94 : 108,619.25 = 42,900.27 : x
2. Step 2: Convert to fraction form
   78,707.94/108,619.25 = 42,900.27/x
3. Step 3: Cross multiply
   78,707.94x = 108,619.25 × 42,900.27
4. Step 4: Simplify right side
   78,707.94x = 4,659,794,530.37
5. Step 5: Solve for x
   x = 4,659,794,530.37/78,707.94
6. Step 6: Final answer
   x = 59,203.62