Finding the Fourth Proportional to 11,636.60, 17,454.42 and 10,071.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,636.60 : 17,454.42 = 10,071.51 : x
2. Step 2: Convert to fraction form
   11,636.60/17,454.42 = 10,071.51/x
3. Step 3: Cross multiply
   11,636.60x = 17,454.42 × 10,071.51
4. Step 4: Simplify right side
   11,636.60x = 175,792,300.12
5. Step 5: Solve for x
   x = 175,792,300.12/11,636.60
6. Step 6: Final answer
   x = 15,106.85