Finding the Fourth Proportional to 16,664.72, 24,996.92 and 4,978.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,664.72 : 24,996.92 = 4,978.16 : x
2. Step 2: Convert to fraction form
   16,664.72/24,996.92 = 4,978.16/x
3. Step 3: Cross multiply
   16,664.72x = 24,996.92 × 4,978.16
4. Step 4: Simplify right side
   16,664.72x = 124,438,667.27
5. Step 5: Solve for x
   x = 124,438,667.27/16,664.72
6. Step 6: Final answer
   x = 7,467.19