Finding the Fourth Proportional to 78,103.99, 117,137.69 and 21,949.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,103.99 : 117,137.69 = 21,949.46 : x
2. Step 2: Convert to fraction form
   78,103.99/117,137.69 = 21,949.46/x
3. Step 3: Cross multiply
   78,103.99x = 117,137.69 × 21,949.46
4. Step 4: Simplify right side
   78,103.99x = 2,571,109,041.15
5. Step 5: Solve for x
   x = 2,571,109,041.15/78,103.99
6. Step 6: Final answer
   x = 32,919.05