Finding the Fourth Proportional to 39,123, 53,989.74 and 22,359.24

Step by Step Solution

1. Step 1: Write the proportion equation
   39,123 : 53,989.74 = 22,359.24 : x
2. Step 2: Convert to fraction form
   39,123/53,989.74 = 22,359.24/x
3. Step 3: Cross multiply
   39,123x = 53,989.74 × 22,359.24
4. Step 4: Simplify right side
   39,123x = 1,207,169,554.20
5. Step 5: Solve for x
   x = 1,207,169,554.20/39,123
6. Step 6: Final answer
   x = 30,855.75