Finding the Fourth Proportional to 89,609.82, 134,380.17 and 30,431.58

Step by Step Solution

1. Step 1: Write the proportion equation
   89,609.82 : 134,380.17 = 30,431.58 : x
2. Step 2: Convert to fraction form
   89,609.82/134,380.17 = 30,431.58/x
3. Step 3: Cross multiply
   89,609.82x = 134,380.17 × 30,431.58
4. Step 4: Simplify right side
   89,609.82x = 4,089,400,893.77
5. Step 5: Solve for x
   x = 4,089,400,893.77/89,609.82
6. Step 6: Final answer
   x = 45,635.63