Finding the Fourth Proportional to 23,772.06, 35,722.72 and 12,686.58

Step by Step Solution

1. Step 1: Write the proportion equation
   23,772.06 : 35,722.72 = 12,686.58 : x
2. Step 2: Convert to fraction form
   23,772.06/35,722.72 = 12,686.58/x
3. Step 3: Cross multiply
   23,772.06x = 35,722.72 × 12,686.58
4. Step 4: Simplify right side
   23,772.06x = 453,199,145.10
5. Step 5: Solve for x
   x = 453,199,145.10/23,772.06
6. Step 6: Final answer
   x = 19,064.36