Finding the Fourth Proportional to 59,441.27, 89,171.93 and 19,989

Step by Step Solution

1. Step 1: Write the proportion equation
   59,441.27 : 89,171.93 = 19,989 : x
2. Step 2: Convert to fraction form
   59,441.27/89,171.93 = 19,989/x
3. Step 3: Cross multiply
   59,441.27x = 89,171.93 × 19,989
4. Step 4: Simplify right side
   59,441.27x = 1,782,457,758.74
5. Step 5: Solve for x
   x = 1,782,457,758.74/59,441.27
6. Step 6: Final answer
   x = 29,986.87