Finding the Fourth Proportional to 78,111.98, 117,167.97 and 21,949.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,111.98 : 117,167.97 = 21,949.82 : x
2. Step 2: Convert to fraction form
   78,111.98/117,167.97 = 21,949.82/x
3. Step 3: Cross multiply
   78,111.98x = 117,167.97 × 21,949.82
4. Step 4: Simplify right side
   78,111.98x = 2,571,815,265.43
5. Step 5: Solve for x
   x = 2,571,815,265.43/78,111.98
6. Step 6: Final answer
   x = 32,924.72