Finding the Fourth Proportional to 288,969.96, 398,858.69 and 168,134.59

Step by Step Solution

1. Step 1: Write the proportion equation
   288,969.96 : 398,858.69 = 168,134.59 : x
2. Step 2: Convert to fraction form
   288,969.96/398,858.69 = 168,134.59/x
3. Step 3: Cross multiply
   288,969.96x = 398,858.69 × 168,134.59
4. Step 4: Simplify right side
   288,969.96x = 67,061,939,476.12
5. Step 5: Solve for x
   x = 67,061,939,476.12/288,969.96
6. Step 6: Final answer
   x = 232,072.36