Finding the Fourth Proportional to 38,895.50, 53,676.06 and 22,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   38,895.50 : 53,676.06 = 22,128.50 : x
2. Step 2: Convert to fraction form
   38,895.50/53,676.06 = 22,128.50/x
3. Step 3: Cross multiply
   38,895.50x = 53,676.06 × 22,128.50
4. Step 4: Simplify right side
   38,895.50x = 1,187,770,693.71
5. Step 5: Solve for x
   x = 1,187,770,693.71/38,895.50
6. Step 6: Final answer
   x = 30,537.48