Finding the Fourth Proportional to 238,920.16, 359,036.72 and 223,316.32

Step by Step Solution

1. Step 1: Write the proportion equation
   238,920.16 : 359,036.72 = 223,316.32 : x
2. Step 2: Convert to fraction form
   238,920.16/359,036.72 = 223,316.32/x
3. Step 3: Cross multiply
   238,920.16x = 359,036.72 × 223,316.32
4. Step 4: Simplify right side
   238,920.16x = 80,178,759,055.27
5. Step 5: Solve for x
   x = 80,178,759,055.27/238,920.16
6. Step 6: Final answer
   x = 335,588.09