Finding the Fourth Proportional to 89,611.32, 134,382.42 and 30,433.08

Step by Step Solution

1. Step 1: Write the proportion equation
   89,611.32 : 134,382.42 = 30,433.08 : x
2. Step 2: Convert to fraction form
   89,611.32/134,382.42 = 30,433.08/x
3. Step 3: Cross multiply
   89,611.32x = 134,382.42 × 30,433.08
4. Step 4: Simplify right side
   89,611.32x = 4,089,670,938.45
5. Step 5: Solve for x
   x = 4,089,670,938.45/89,611.32
6. Step 6: Final answer
   x = 45,637.88