Finding the Fourth Proportional to 65,997.72, 91,076.81 and 35,784.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,997.72 : 91,076.81 = 35,784.05 : x
2. Step 2: Convert to fraction form
   65,997.72/91,076.81 = 35,784.05/x
3. Step 3: Cross multiply
   65,997.72x = 91,076.81 × 35,784.05
4. Step 4: Simplify right side
   65,997.72x = 3,259,096,488.58
5. Step 5: Solve for x
   x = 3,259,096,488.58/65,997.72
6. Step 6: Final answer
   x = 49,381.96