Finding the Fourth Proportional to 16,074.72, 24,114.61 and 4,978.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,074.72 : 24,114.61 = 4,978.78 : x
2. Step 2: Convert to fraction form
   16,074.72/24,114.61 = 4,978.78/x
3. Step 3: Cross multiply
   16,074.72x = 24,114.61 × 4,978.78
4. Step 4: Simplify right side
   16,074.72x = 120,061,419.56
5. Step 5: Solve for x
   x = 120,061,419.56/16,074.72
6. Step 6: Final answer
   x = 7,468.96