Finding the Fourth Proportional to 89,490.84, 134,152.43 and 30,285.06

Step by Step Solution

1. Step 1: Write the proportion equation
   89,490.84 : 134,152.43 = 30,285.06 : x
2. Step 2: Convert to fraction form
   89,490.84/134,152.43 = 30,285.06/x
3. Step 3: Cross multiply
   89,490.84x = 134,152.43 × 30,285.06
4. Step 4: Simplify right side
   89,490.84x = 4,062,814,240.27
5. Step 5: Solve for x
   x = 4,062,814,240.27/89,490.84
6. Step 6: Final answer
   x = 45,399.22