Finding the Fourth Proportional to 21,552.37, 29,742.56 and 12,120.93

Step by Step Solution

1. Step 1: Write the proportion equation
   21,552.37 : 29,742.56 = 12,120.93 : x
2. Step 2: Convert to fraction form
   21,552.37/29,742.56 = 12,120.93/x
3. Step 3: Cross multiply
   21,552.37x = 29,742.56 × 12,120.93
4. Step 4: Simplify right side
   21,552.37x = 360,507,487.78
5. Step 5: Solve for x
   x = 360,507,487.78/21,552.37
6. Step 6: Final answer
   x = 16,727.05