Finding the Fourth Proportional to 78,048.33, 107,706.96 and 42,238.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,048.33 : 107,706.96 = 42,238.33 : x
2. Step 2: Convert to fraction form
   78,048.33/107,706.96 = 42,238.33/x
3. Step 3: Cross multiply
   78,048.33x = 107,706.96 × 42,238.33
4. Step 4: Simplify right side
   78,048.33x = 4,549,362,119.78
5. Step 5: Solve for x
   x = 4,549,362,119.78/78,048.33
6. Step 6: Final answer
   x = 58,289.04