Finding the Fourth Proportional to 38,907, 53,701.38 and 22,149.72

Step by Step Solution

1. Step 1: Write the proportion equation
   38,907 : 53,701.38 = 22,149.72 : x
2. Step 2: Convert to fraction form
   38,907/53,701.38 = 22,149.72/x
3. Step 3: Cross multiply
   38,907x = 53,701.38 × 22,149.72
4. Step 4: Simplify right side
   38,907x = 1,189,470,530.61
5. Step 5: Solve for x
   x = 1,189,470,530.61/38,907
6. Step 6: Final answer
   x = 30,572.15