Finding the Fourth Proportional to 38,918.18, 53,709.82 and 22,151.18

Step by Step Solution

1. Step 1: Write the proportion equation
   38,918.18 : 53,709.82 = 22,151.18 : x
2. Step 2: Convert to fraction form
   38,918.18/53,709.82 = 22,151.18/x
3. Step 3: Cross multiply
   38,918.18x = 53,709.82 × 22,151.18
4. Step 4: Simplify right side
   38,918.18x = 1,189,735,890.59
5. Step 5: Solve for x
   x = 1,189,735,890.59/38,918.18
6. Step 6: Final answer
   x = 30,570.18