Finding the Fourth Proportional to 117,116.40, 161,620.68 and 63,401.42

Step by Step Solution

1. Step 1: Write the proportion equation
   117,116.40 : 161,620.68 = 63,401.42 : x
2. Step 2: Convert to fraction form
   117,116.40/161,620.68 = 63,401.42/x
3. Step 3: Cross multiply
   117,116.40x = 161,620.68 × 63,401.42
4. Step 4: Simplify right side
   117,116.40x = 10,246,980,613.37
5. Step 5: Solve for x
   x = 10,246,980,613.37/117,116.40
6. Step 6: Final answer
   x = 87,493.99