Finding the Fourth Proportional to 65,715.99, 90,685.89 and 41,529.88

Step by Step Solution

1. Step 1: Write the proportion equation
   65,715.99 : 90,685.89 = 41,529.88 : x
2. Step 2: Convert to fraction form
   65,715.99/90,685.89 = 41,529.88/x
3. Step 3: Cross multiply
   65,715.99x = 90,685.89 × 41,529.88
4. Step 4: Simplify right side
   65,715.99x = 3,766,173,675.96
5. Step 5: Solve for x
   x = 3,766,173,675.96/65,715.99
6. Step 6: Final answer
   x = 57,309.86