Finding the Fourth Proportional to 117,296.60, 162,003.83 and 77,189.42

Step by Step Solution

1. Step 1: Write the proportion equation
   117,296.60 : 162,003.83 = 77,189.42 : x
2. Step 2: Convert to fraction form
   117,296.60/162,003.83 = 77,189.42/x
3. Step 3: Cross multiply
   117,296.60x = 162,003.83 × 77,189.42
4. Step 4: Simplify right side
   117,296.60x = 12,504,980,479.51
5. Step 5: Solve for x
   x = 12,504,980,479.51/117,296.60
6. Step 6: Final answer
   x = 106,609.92