Finding the Fourth Proportional to 78,048.73, 107,707.24 and 42,238.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,048.73 : 107,707.24 = 42,238.73 : x
2. Step 2: Convert to fraction form
   78,048.73/107,707.24 = 42,238.73/x
3. Step 3: Cross multiply
   78,048.73x = 107,707.24 × 42,238.73
4. Step 4: Simplify right side
   78,048.73x = 4,549,416,745.62
5. Step 5: Solve for x
   x = 4,549,416,745.62/78,048.73
6. Step 6: Final answer
   x = 58,289.44