Finding the Fourth Proportional to 25,641.69, 38,336.09 and 21,736.53

Step by Step Solution

1. Step 1: Write the proportion equation
   25,641.69 : 38,336.09 = 21,736.53 : x
2. Step 2: Convert to fraction form
   25,641.69/38,336.09 = 21,736.53/x
3. Step 3: Cross multiply
   25,641.69x = 38,336.09 × 21,736.53
4. Step 4: Simplify right side
   25,641.69x = 833,293,537.27
5. Step 5: Solve for x
   x = 833,293,537.27/25,641.69
6. Step 6: Final answer
   x = 32,497.61