Finding the Fourth Proportional to 33,123, 45,709.60 and 18,587.20

Step by Step Solution

1. Step 1: Write the proportion equation
   33,123 : 45,709.60 = 18,587.20 : x
2. Step 2: Convert to fraction form
   33,123/45,709.60 = 18,587.20/x
3. Step 3: Cross multiply
   33,123x = 45,709.60 × 18,587.20
4. Step 4: Simplify right side
   33,123x = 849,613,477.12
5. Step 5: Solve for x
   x = 849,613,477.12/33,123
6. Step 6: Final answer
   x = 25,650.26