Finding the Fourth Proportional to 20,636.48, 28,368.82 and 17,754.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,636.48 : 28,368.82 = 17,754.72 : x
2. Step 2: Convert to fraction form
   20,636.48/28,368.82 = 17,754.72/x
3. Step 3: Cross multiply
   20,636.48x = 28,368.82 × 17,754.72
4. Step 4: Simplify right side
   20,636.48x = 503,680,455.83
5. Step 5: Solve for x
   x = 503,680,455.83/20,636.48
6. Step 6: Final answer
   x = 24,407.29