Finding the Fourth Proportional to 230,105.70, 345,288.15 and 89,846.10

Step by Step Solution

1. Step 1: Write the proportion equation
   230,105.70 : 345,288.15 = 89,846.10 : x
2. Step 2: Convert to fraction form
   230,105.70/345,288.15 = 89,846.10/x
3. Step 3: Cross multiply
   230,105.70x = 345,288.15 × 89,846.10
4. Step 4: Simplify right side
   230,105.70x = 31,022,793,653.72
5. Step 5: Solve for x
   x = 31,022,793,653.72/230,105.70
6. Step 6: Final answer
   x = 134,819.75