Finding the Fourth Proportional to 38,155.78, 52,658.30 and 22,239.89

Step by Step Solution

1. Step 1: Write the proportion equation
   38,155.78 : 52,658.30 = 22,239.89 : x
2. Step 2: Convert to fraction form
   38,155.78/52,658.30 = 22,239.89/x
3. Step 3: Cross multiply
   38,155.78x = 52,658.30 × 22,239.89
4. Step 4: Simplify right side
   38,155.78x = 1,171,114,799.59
5. Step 5: Solve for x
   x = 1,171,114,799.59/38,155.78
6. Step 6: Final answer
   x = 30,692.99