Finding the Fourth Proportional to 23,730.72, 35,583.84 and 13,872.84

Step by Step Solution

1. Step 1: Write the proportion equation
   23,730.72 : 35,583.84 = 13,872.84 : x
2. Step 2: Convert to fraction form
   23,730.72/35,583.84 = 13,872.84/x
3. Step 3: Cross multiply
   23,730.72x = 35,583.84 × 13,872.84
4. Step 4: Simplify right side
   23,730.72x = 493,648,918.91
5. Step 5: Solve for x
   x = 493,648,918.91/23,730.72
6. Step 6: Final answer
   x = 20,802.10