Finding the Fourth Proportional to 65,288.94, 90,082.99 and 41,406.90

Step by Step Solution

1. Step 1: Write the proportion equation
   65,288.94 : 90,082.99 = 41,406.90 : x
2. Step 2: Convert to fraction form
   65,288.94/90,082.99 = 41,406.90/x
3. Step 3: Cross multiply
   65,288.94x = 90,082.99 × 41,406.90
4. Step 4: Simplify right side
   65,288.94x = 3,730,056,839.66
5. Step 5: Solve for x
   x = 3,730,056,839.66/65,288.94
6. Step 6: Final answer
   x = 57,131.53