Finding the Fourth Proportional to 78,369.28, 108,134.40 and 50,053.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,369.28 : 108,134.40 = 50,053.12 : x
2. Step 2: Convert to fraction form
   78,369.28/108,134.40 = 50,053.12/x
3. Step 3: Cross multiply
   78,369.28x = 108,134.40 × 50,053.12
4. Step 4: Simplify right side
   78,369.28x = 5,412,464,099.33
5. Step 5: Solve for x
   x = 5,412,464,099.33/78,369.28
6. Step 6: Final answer
   x = 69,063.59