Finding the Fourth Proportional to 89,235.34, 133,865.34 and 30,087.91

Step by Step Solution

1. Step 1: Write the proportion equation
   89,235.34 : 133,865.34 = 30,087.91 : x
2. Step 2: Convert to fraction form
   89,235.34/133,865.34 = 30,087.91/x
3. Step 3: Cross multiply
   89,235.34x = 133,865.34 × 30,087.91
4. Step 4: Simplify right side
   89,235.34x = 4,027,728,302.04
5. Step 5: Solve for x
   x = 4,027,728,302.04/89,235.34
6. Step 6: Final answer
   x = 45,136.02