Finding the Fourth Proportional to 65,961.68, 91,005 and 37,647.44

Step by Step Solution

1. Step 1: Write the proportion equation
   65,961.68 : 91,005 = 37,647.44 : x
2. Step 2: Convert to fraction form
   65,961.68/91,005 = 37,647.44/x
3. Step 3: Cross multiply
   65,961.68x = 91,005 × 37,647.44
4. Step 4: Simplify right side
   65,961.68x = 3,426,105,277.20
5. Step 5: Solve for x
   x = 3,426,105,277.20/65,961.68
6. Step 6: Final answer
   x = 51,940.84