Finding the Fourth Proportional to 311,786.72, 467,564.60 and 112,053.28

Step by Step Solution

1. Step 1: Write the proportion equation
   311,786.72 : 467,564.60 = 112,053.28 : x
2. Step 2: Convert to fraction form
   311,786.72/467,564.60 = 112,053.28/x
3. Step 3: Cross multiply
   311,786.72x = 467,564.60 × 112,053.28
4. Step 4: Simplify right side
   311,786.72x = 52,392,147,041.89
5. Step 5: Solve for x
   x = 52,392,147,041.89/311,786.72
6. Step 6: Final answer
   x = 168,038.42