Finding the Fourth Proportional to 49,978.72, 74,968.04 and 16,692.56

Step by Step Solution

1. Step 1: Write the proportion equation
   49,978.72 : 74,968.04 = 16,692.56 : x
2. Step 2: Convert to fraction form
   49,978.72/74,968.04 = 16,692.56/x
3. Step 3: Cross multiply
   49,978.72x = 74,968.04 × 16,692.56
4. Step 4: Simplify right side
   49,978.72x = 1,251,408,505.78
5. Step 5: Solve for x
   x = 1,251,408,505.78/49,978.72
6. Step 6: Final answer
   x = 25,038.83