Finding the Fourth Proportional to 22,410.27, 30,919.32 and 12,977.01

Step by Step Solution

1. Step 1: Write the proportion equation
   22,410.27 : 30,919.32 = 12,977.01 : x
2. Step 2: Convert to fraction form
   22,410.27/30,919.32 = 12,977.01/x
3. Step 3: Cross multiply
   22,410.27x = 30,919.32 × 12,977.01
4. Step 4: Simplify right side
   22,410.27x = 401,240,324.83
5. Step 5: Solve for x
   x = 401,240,324.83/22,410.27
6. Step 6: Final answer
   x = 17,904.31