Finding the Fourth Proportional to 117,964.27, 177,022.50 and 43,078.15

Step by Step Solution

1. Step 1: Write the proportion equation
   117,964.27 : 177,022.50 = 43,078.15 : x
2. Step 2: Convert to fraction form
   117,964.27/177,022.50 = 43,078.15/x
3. Step 3: Cross multiply
   117,964.27x = 177,022.50 × 43,078.15
4. Step 4: Simplify right side
   117,964.27x = 7,625,801,868.11
5. Step 5: Solve for x
   x = 7,625,801,868.11/117,964.27
6. Step 6: Final answer
   x = 64,645.01