Finding the Fourth Proportional to 30,636.63, 42,279.57 and 17,210.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,636.63 : 42,279.57 = 17,210.48 : x
2. Step 2: Convert to fraction form
   30,636.63/42,279.57 = 17,210.48/x
3. Step 3: Cross multiply
   30,636.63x = 42,279.57 × 17,210.48
4. Step 4: Simplify right side
   30,636.63x = 727,651,482.50
5. Step 5: Solve for x
   x = 727,651,482.50/30,636.63
6. Step 6: Final answer
   x = 23,751.03