Finding the Fourth Proportional to 78,620.42, 117,934.68 and 22,456.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,620.42 : 117,934.68 = 22,456.10 : x
2. Step 2: Convert to fraction form
   78,620.42/117,934.68 = 22,456.10/x
3. Step 3: Cross multiply
   78,620.42x = 117,934.68 × 22,456.10
4. Step 4: Simplify right side
   78,620.42x = 2,648,352,967.55
5. Step 5: Solve for x
   x = 2,648,352,967.55/78,620.42
6. Step 6: Final answer
   x = 33,685.31