Finding the Fourth Proportional to 12,300.72, 18,452.93 and 3,977.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.72 : 18,452.93 = 3,977.97 : x
2. Step 2: Convert to fraction form
   12,300.72/18,452.93 = 3,977.97/x
3. Step 3: Cross multiply
   12,300.72x = 18,452.93 × 3,977.97
4. Step 4: Simplify right side
   12,300.72x = 73,405,182.06
5. Step 5: Solve for x
   x = 73,405,182.06/12,300.72
6. Step 6: Final answer
   x = 5,967.55