Finding the Fourth Proportional to 29,399.82, 40,576.59 and 21,468.30

Step by Step Solution

1. Step 1: Write the proportion equation
   29,399.82 : 40,576.59 = 21,468.30 : x
2. Step 2: Convert to fraction form
   29,399.82/40,576.59 = 21,468.30/x
3. Step 3: Cross multiply
   29,399.82x = 40,576.59 × 21,468.30
4. Step 4: Simplify right side
   29,399.82x = 871,110,407.10
5. Step 5: Solve for x
   x = 871,110,407.10/29,399.82
6. Step 6: Final answer
   x = 29,629.79