Finding the Fourth Proportional to 65,012.68, 89,723.87 and 39,516.82

Step by Step Solution

1. Step 1: Write the proportion equation
   65,012.68 : 89,723.87 = 39,516.82 : x
2. Step 2: Convert to fraction form
   65,012.68/89,723.87 = 39,516.82/x
3. Step 3: Cross multiply
   65,012.68x = 89,723.87 × 39,516.82
4. Step 4: Simplify right side
   65,012.68x = 3,545,602,020.49
5. Step 5: Solve for x
   x = 3,545,602,020.49/65,012.68
6. Step 6: Final answer
   x = 54,537.08