Finding the Fourth Proportional to 78,594.34, 117,820.41 and 28,662.74

Step by Step Solution

1. Step 1: Write the proportion equation
   78,594.34 : 117,820.41 = 28,662.74 : x
2. Step 2: Convert to fraction form
   78,594.34/117,820.41 = 28,662.74/x
3. Step 3: Cross multiply
   78,594.34x = 117,820.41 × 28,662.74
4. Step 4: Simplify right side
   78,594.34x = 3,377,055,189.42
5. Step 5: Solve for x
   x = 3,377,055,189.42/78,594.34
6. Step 6: Final answer
   x = 42,968.17