Finding the Fourth Proportional to 78,703.38, 108,591.40 and 50,447.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,703.38 : 108,591.40 = 50,447.34 : x
2. Step 2: Convert to fraction form
   78,703.38/108,591.40 = 50,447.34/x
3. Step 3: Cross multiply
   78,703.38x = 108,591.40 × 50,447.34
4. Step 4: Simplify right side
   78,703.38x = 5,478,147,276.88
5. Step 5: Solve for x
   x = 5,478,147,276.88/78,703.38
6. Step 6: Final answer
   x = 69,604.98