Finding the Fourth Proportional to 16,870.64, 23,281.37 and 9,317.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,870.64 : 23,281.37 = 9,317.46 : x
2. Step 2: Convert to fraction form
   16,870.64/23,281.37 = 9,317.46/x
3. Step 3: Cross multiply
   16,870.64x = 23,281.37 × 9,317.46
4. Step 4: Simplify right side
   16,870.64x = 216,923,233.72
5. Step 5: Solve for x
   x = 216,923,233.72/16,870.64
6. Step 6: Final answer
   x = 12,858.03