Finding the Fourth Proportional to 230,111.40, 345,026.16 and 89,706

Step by Step Solution

1. Step 1: Write the proportion equation
   230,111.40 : 345,026.16 = 89,706 : x
2. Step 2: Convert to fraction form
   230,111.40/345,026.16 = 89,706/x
3. Step 3: Cross multiply
   230,111.40x = 345,026.16 × 89,706
4. Step 4: Simplify right side
   230,111.40x = 30,950,916,708.96
5. Step 5: Solve for x
   x = 30,950,916,708.96/230,111.40
6. Step 6: Final answer
   x = 134,504.06