Finding the Fourth Proportional to 90,274.06, 135,423.69 and 37,671.49

Step by Step Solution

1. Step 1: Write the proportion equation
   90,274.06 : 135,423.69 = 37,671.49 : x
2. Step 2: Convert to fraction form
   90,274.06/135,423.69 = 37,671.49/x
3. Step 3: Cross multiply
   90,274.06x = 135,423.69 × 37,671.49
4. Step 4: Simplify right side
   90,274.06x = 5,101,612,183.60
5. Step 5: Solve for x
   x = 5,101,612,183.60/90,274.06
6. Step 6: Final answer
   x = 56,512.49