Finding the Fourth Proportional to 65,880.53, 90,914.50 and 35,665.06

Step by Step Solution

1. Step 1: Write the proportion equation
   65,880.53 : 90,914.50 = 35,665.06 : x
2. Step 2: Convert to fraction form
   65,880.53/90,914.50 = 35,665.06/x
3. Step 3: Cross multiply
   65,880.53x = 90,914.50 × 35,665.06
4. Step 4: Simplify right side
   65,880.53x = 3,242,471,097.37
5. Step 5: Solve for x
   x = 3,242,471,097.37/65,880.53
6. Step 6: Final answer
   x = 49,217.44