Finding the Fourth Proportional to 65,856.78, 90,882.33 and 35,642.10

Step by Step Solution

1. Step 1: Write the proportion equation
   65,856.78 : 90,882.33 = 35,642.10 : x
2. Step 2: Convert to fraction form
   65,856.78/90,882.33 = 35,642.10/x
3. Step 3: Cross multiply
   65,856.78x = 90,882.33 × 35,642.10
4. Step 4: Simplify right side
   65,856.78x = 3,239,237,094.09
5. Step 5: Solve for x
   x = 3,239,237,094.09/65,856.78
6. Step 6: Final answer
   x = 49,186.08