Finding the Fourth Proportional to 223,939.69, 309,036.77 and 123,337.69

Step by Step Solution

1. Step 1: Write the proportion equation
   223,939.69 : 309,036.77 = 123,337.69 : x
2. Step 2: Convert to fraction form
   223,939.69/309,036.77 = 123,337.69/x
3. Step 3: Cross multiply
   223,939.69x = 309,036.77 × 123,337.69
4. Step 4: Simplify right side
   223,939.69x = 38,115,880,410.10
5. Step 5: Solve for x
   x = 38,115,880,410.10/223,939.69
6. Step 6: Final answer
   x = 170,206.01