Finding the Fourth Proportional to 59,603.78, 89,350.10 and 20,133.30

Step by Step Solution

1. Step 1: Write the proportion equation
   59,603.78 : 89,350.10 = 20,133.30 : x
2. Step 2: Convert to fraction form
   59,603.78/89,350.10 = 20,133.30/x
3. Step 3: Cross multiply
   59,603.78x = 89,350.10 × 20,133.30
4. Step 4: Simplify right side
   59,603.78x = 1,798,912,368.33
5. Step 5: Solve for x
   x = 1,798,912,368.33/59,603.78
6. Step 6: Final answer
   x = 30,181.18