Finding the Fourth Proportional to 17,870.82, 24,645.59 and 11,157.06

Step by Step Solution

1. Step 1: Write the proportion equation
   17,870.82 : 24,645.59 = 11,157.06 : x
2. Step 2: Convert to fraction form
   17,870.82/24,645.59 = 11,157.06/x
3. Step 3: Cross multiply
   17,870.82x = 24,645.59 × 11,157.06
4. Step 4: Simplify right side
   17,870.82x = 274,972,270.58
5. Step 5: Solve for x
   x = 274,972,270.58/17,870.82
6. Step 6: Final answer
   x = 15,386.66