Finding the Fourth Proportional to 78,990.82, 109,007.36 and 43,180.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,990.82 : 109,007.36 = 43,180.82 : x
2. Step 2: Convert to fraction form
   78,990.82/109,007.36 = 43,180.82/x
3. Step 3: Cross multiply
   78,990.82x = 109,007.36 × 43,180.82
4. Step 4: Simplify right side
   78,990.82x = 4,707,026,974.93
5. Step 5: Solve for x
   x = 4,707,026,974.93/78,990.82
6. Step 6: Final answer
   x = 59,589.55