Finding the Fourth Proportional to 78,791.35, 108,732.82 and 42,982.11

Step by Step Solution

1. Step 1: Write the proportion equation
   78,791.35 : 108,732.82 = 42,982.11 : x
2. Step 2: Convert to fraction form
   78,791.35/108,732.82 = 42,982.11/x
3. Step 3: Cross multiply
   78,791.35x = 108,732.82 × 42,982.11
4. Step 4: Simplify right side
   78,791.35x = 4,673,565,483.83
5. Step 5: Solve for x
   x = 4,673,565,483.83/78,791.35
6. Step 6: Final answer
   x = 59,315.72