Finding the Fourth Proportional to 30,692.72, 42,355 and 17,264.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,692.72 : 42,355 = 17,264.56 : x
2. Step 2: Convert to fraction form
   30,692.72/42,355 = 17,264.56/x
3. Step 3: Cross multiply
   30,692.72x = 42,355 × 17,264.56
4. Step 4: Simplify right side
   30,692.72x = 731,240,438.80
5. Step 5: Solve for x
   x = 731,240,438.80/30,692.72
6. Step 6: Final answer
   x = 23,824.56