Finding the Fourth Proportional to 76,016.34, 104,893.29 and 42,020.15

Step by Step Solution

1. Step 1: Write the proportion equation
   76,016.34 : 104,893.29 = 42,020.15 : x
2. Step 2: Convert to fraction form
   76,016.34/104,893.29 = 42,020.15/x
3. Step 3: Cross multiply
   76,016.34x = 104,893.29 × 42,020.15
4. Step 4: Simplify right side
   76,016.34x = 4,407,631,255.33
5. Step 5: Solve for x
   x = 4,407,631,255.33/76,016.34
6. Step 6: Final answer
   x = 57,982.68