Finding the Fourth Proportional to 16,475.20, 23,123.60 and 16,475.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,475.20 : 23,123.60 = 16,475.20 : x
2. Step 2: Convert to fraction form
   16,475.20/23,123.60 = 16,475.20/x
3. Step 3: Cross multiply
   16,475.20x = 23,123.60 × 16,475.20
4. Step 4: Simplify right side
   16,475.20x = 380,965,934.72
5. Step 5: Solve for x
   x = 380,965,934.72/16,475.20
6. Step 6: Final answer
   x = 23,123.60