Finding the Fourth Proportional to 65,305.42, 90,105.74 and 41,423.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,305.42 : 90,105.74 = 41,423.38 : x
2. Step 2: Convert to fraction form
   65,305.42/90,105.74 = 41,423.38/x
3. Step 3: Cross multiply
   65,305.42x = 90,105.74 × 41,423.38
4. Step 4: Simplify right side
   65,305.42x = 3,732,484,308.20
5. Step 5: Solve for x
   x = 3,732,484,308.20/65,305.42
6. Step 6: Final answer
   x = 57,154.28