Finding the Fourth Proportional to 90,033.72, 135,036.72 and 30,855.84

Step by Step Solution

1. Step 1: Write the proportion equation
   90,033.72 : 135,036.72 = 30,855.84 : x
2. Step 2: Convert to fraction form
   90,033.72/135,036.72 = 30,855.84/x
3. Step 3: Cross multiply
   90,033.72x = 135,036.72 × 30,855.84
4. Step 4: Simplify right side
   90,033.72x = 4,166,671,426.44
5. Step 5: Solve for x
   x = 4,166,671,426.44/90,033.72
6. Step 6: Final answer
   x = 46,279.01