Finding the Fourth Proportional to 65,881.98, 90,930.87 and 60,568.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,881.98 : 90,930.87 = 60,568.38 : x
2. Step 2: Convert to fraction form
   65,881.98/90,930.87 = 60,568.38/x
3. Step 3: Cross multiply
   65,881.98x = 90,930.87 × 60,568.38
4. Step 4: Simplify right side
   65,881.98x = 5,507,535,487.89
5. Step 5: Solve for x
   x = 5,507,535,487.89/65,881.98
6. Step 6: Final answer
   x = 83,596.99