Finding the Fourth Proportional to 16,070.85, 24,112.61 and 4,978.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,070.85 : 24,112.61 = 4,978.40 : x
2. Step 2: Convert to fraction form
   16,070.85/24,112.61 = 4,978.40/x
3. Step 3: Cross multiply
   16,070.85x = 24,112.61 × 4,978.40
4. Step 4: Simplify right side
   16,070.85x = 120,042,222.32
5. Step 5: Solve for x
   x = 120,042,222.32/16,070.85
6. Step 6: Final answer
   x = 7,469.56