Finding the Fourth Proportional to 16,389.32, 22,620.17 and 9,674.51

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.32 : 22,620.17 = 9,674.51 : x
2. Step 2: Convert to fraction form
   16,389.32/22,620.17 = 9,674.51/x
3. Step 3: Cross multiply
   16,389.32x = 22,620.17 × 9,674.51
4. Step 4: Simplify right side
   16,389.32x = 218,839,060.87
5. Step 5: Solve for x
   x = 218,839,060.87/16,389.32
6. Step 6: Final answer
   x = 13,352.54