Finding the Fourth Proportional to 59,638.69, 89,461.82 and 19,660.33

Step by Step Solution

1. Step 1: Write the proportion equation
   59,638.69 : 89,461.82 = 19,660.33 : x
2. Step 2: Convert to fraction form
   59,638.69/89,461.82 = 19,660.33/x
3. Step 3: Cross multiply
   59,638.69x = 89,461.82 × 19,660.33
4. Step 4: Simplify right side
   59,638.69x = 1,758,848,805.30
5. Step 5: Solve for x
   x = 1,758,848,805.30/59,638.69
6. Step 6: Final answer
   x = 29,491.74