Finding the Fourth Proportional to 38,443.56, 53,052.12 and 21,676.56

Step by Step Solution

1. Step 1: Write the proportion equation
   38,443.56 : 53,052.12 = 21,676.56 : x
2. Step 2: Convert to fraction form
   38,443.56/53,052.12 = 21,676.56/x
3. Step 3: Cross multiply
   38,443.56x = 53,052.12 × 21,676.56
4. Step 4: Simplify right side
   38,443.56x = 1,149,987,462.31
5. Step 5: Solve for x
   x = 1,149,987,462.31/38,443.56
6. Step 6: Final answer
   x = 29,913.66