Finding the Fourth Proportional to 78,411.24, 117,514.80 and 33,990.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,411.24 : 117,514.80 = 33,990.84 : x
2. Step 2: Convert to fraction form
   78,411.24/117,514.80 = 33,990.84/x
3. Step 3: Cross multiply
   78,411.24x = 117,514.80 × 33,990.84
4. Step 4: Simplify right side
   78,411.24x = 3,994,426,764.43
5. Step 5: Solve for x
   x = 3,994,426,764.43/78,411.24
6. Step 6: Final answer
   x = 50,942.02