Finding the Fourth Proportional to 78,073.72, 107,715.07 and 50,837.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,073.72 : 107,715.07 = 50,837.33 : x
2. Step 2: Convert to fraction form
   78,073.72/107,715.07 = 50,837.33/x
3. Step 3: Cross multiply
   78,073.72x = 107,715.07 × 50,837.33
4. Step 4: Simplify right side
   78,073.72x = 5,475,946,559.56
5. Step 5: Solve for x
   x = 5,475,946,559.56/78,073.72
6. Step 6: Final answer
   x = 70,138.15