Finding the Fourth Proportional to 289,443.97, 434,152.59 and 79,081.30

Step by Step Solution

1. Step 1: Write the proportion equation
   289,443.97 : 434,152.59 = 79,081.30 : x
2. Step 2: Convert to fraction form
   289,443.97/434,152.59 = 79,081.30/x
3. Step 3: Cross multiply
   289,443.97x = 434,152.59 × 79,081.30
4. Step 4: Simplify right side
   289,443.97x = 34,333,351,215.57
5. Step 5: Solve for x
   x = 34,333,351,215.57/289,443.97
6. Step 6: Final answer
   x = 118,618.30