Finding the Fourth Proportional to 89,783.48, 134,673.86 and 30,660.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,783.48 : 134,673.86 = 30,660.50 : x
2. Step 2: Convert to fraction form
   89,783.48/134,673.86 = 30,660.50/x
3. Step 3: Cross multiply
   89,783.48x = 134,673.86 × 30,660.50
4. Step 4: Simplify right side
   89,783.48x = 4,129,167,884.53
5. Step 5: Solve for x
   x = 4,129,167,884.53/89,783.48
6. Step 6: Final answer
   x = 45,990.29