Finding the Fourth Proportional to 78,052.68, 107,712.72 and 42,242.97

Step by Step Solution

1. Step 1: Write the proportion equation
   78,052.68 : 107,712.72 = 42,242.97 : x
2. Step 2: Convert to fraction form
   78,052.68/107,712.72 = 42,242.97/x
3. Step 3: Cross multiply
   78,052.68x = 107,712.72 × 42,242.97
4. Step 4: Simplify right side
   78,052.68x = 4,550,105,199.58
5. Step 5: Solve for x
   x = 4,550,105,199.58/78,052.68
6. Step 6: Final answer
   x = 58,295.31