Finding the Fourth Proportional to 89,923.65, 134,872.71 and 30,750.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,923.65 : 134,872.71 = 30,750.72 : x
2. Step 2: Convert to fraction form
   89,923.65/134,872.71 = 30,750.72/x
3. Step 3: Cross multiply
   89,923.65x = 134,872.71 × 30,750.72
4. Step 4: Simplify right side
   89,923.65x = 4,147,432,940.85
5. Step 5: Solve for x
   x = 4,147,432,940.85/89,923.65
6. Step 6: Final answer
   x = 46,121.71