Finding the Fourth Proportional to 28,164.78, 38,864.72 and 16,832.01

Step by Step Solution

1. Step 1: Write the proportion equation
   28,164.78 : 38,864.72 = 16,832.01 : x
2. Step 2: Convert to fraction form
   28,164.78/38,864.72 = 16,832.01/x
3. Step 3: Cross multiply
   28,164.78x = 38,864.72 × 16,832.01
4. Step 4: Simplify right side
   28,164.78x = 654,171,355.69
5. Step 5: Solve for x
   x = 654,171,355.69/28,164.78
6. Step 6: Final answer
   x = 23,226.57