Finding the Fourth Proportional to 16,977.47, 23,427.83 and 9,423.35

Step by Step Solution

1. Step 1: Write the proportion equation
   16,977.47 : 23,427.83 = 9,423.35 : x
2. Step 2: Convert to fraction form
   16,977.47/23,427.83 = 9,423.35/x
3. Step 3: Cross multiply
   16,977.47x = 23,427.83 × 9,423.35
4. Step 4: Simplify right side
   16,977.47x = 220,768,767.89
5. Step 5: Solve for x
   x = 220,768,767.89/16,977.47
6. Step 6: Final answer
   x = 13,003.64