Finding the Fourth Proportional to 238,910.02, 358,337.31 and 89,155.54

Step by Step Solution

1. Step 1: Write the proportion equation
   238,910.02 : 358,337.31 = 89,155.54 : x
2. Step 2: Convert to fraction form
   238,910.02/358,337.31 = 89,155.54/x
3. Step 3: Cross multiply
   238,910.02x = 358,337.31 × 89,155.54
4. Step 4: Simplify right side
   238,910.02x = 31,947,756,375.20
5. Step 5: Solve for x
   x = 31,947,756,375.20/238,910.02
6. Step 6: Final answer
   x = 133,722.97