Finding the Fourth Proportional to 59,986.67, 89,984.79 and 20,544.13

Step by Step Solution

1. Step 1: Write the proportion equation
   59,986.67 : 89,984.79 = 20,544.13 : x
2. Step 2: Convert to fraction form
   59,986.67/89,984.79 = 20,544.13/x
3. Step 3: Cross multiply
   59,986.67x = 89,984.79 × 20,544.13
4. Step 4: Simplify right side
   59,986.67x = 1,848,658,773.86
5. Step 5: Solve for x
   x = 1,848,658,773.86/59,986.67
6. Step 6: Final answer
   x = 30,817.83