Finding the Fourth Proportional to 238,894.52, 358,091.89 and 89,069.63

Step by Step Solution

1. Step 1: Write the proportion equation
   238,894.52 : 358,091.89 = 89,069.63 : x
2. Step 2: Convert to fraction form
   238,894.52/358,091.89 = 89,069.63/x
3. Step 3: Cross multiply
   238,894.52x = 358,091.89 × 89,069.63
4. Step 4: Simplify right side
   238,894.52x = 31,895,110,135.17
5. Step 5: Solve for x
   x = 31,895,110,135.17/238,894.52
6. Step 6: Final answer
   x = 133,511.27