Finding the Fourth Proportional to 89,485.93, 134,145.42 and 30,280.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,485.93 : 134,145.42 = 30,280.42 : x
2. Step 2: Convert to fraction form
   89,485.93/134,145.42 = 30,280.42/x
3. Step 3: Cross multiply
   89,485.93x = 134,145.42 × 30,280.42
4. Step 4: Simplify right side
   89,485.93x = 4,061,979,658.68
5. Step 5: Solve for x
   x = 4,061,979,658.68/89,485.93
6. Step 6: Final answer
   x = 45,392.38