Finding the Fourth Proportional to 238,903.11, 358,104.78 and 89,078.22

Step by Step Solution

1. Step 1: Write the proportion equation
   238,903.11 : 358,104.78 = 89,078.22 : x
2. Step 2: Convert to fraction form
   238,903.11/358,104.78 = 89,078.22/x
3. Step 3: Cross multiply
   238,903.11x = 358,104.78 × 89,078.22
4. Step 4: Simplify right side
   238,903.11x = 31,899,336,375.89
5. Step 5: Solve for x
   x = 31,899,336,375.89/238,903.11
6. Step 6: Final answer
   x = 133,524.16