Finding the Fourth Proportional to 117,558.05, 162,279.74 and 79,369.31

Step by Step Solution

1. Step 1: Write the proportion equation
   117,558.05 : 162,279.74 = 79,369.31 : x
2. Step 2: Convert to fraction form
   117,558.05/162,279.74 = 79,369.31/x
3. Step 3: Cross multiply
   117,558.05x = 162,279.74 × 79,369.31
4. Step 4: Simplify right side
   117,558.05x = 12,880,031,594.90
5. Step 5: Solve for x
   x = 12,880,031,594.90/117,558.05
6. Step 6: Final answer
   x = 109,563.17