Finding the Fourth Proportional to 55,123.42, 82,699 and 15,680.54

Step by Step Solution

1. Step 1: Write the proportion equation
   55,123.42 : 82,699 = 15,680.54 : x
2. Step 2: Convert to fraction form
   55,123.42/82,699 = 15,680.54/x
3. Step 3: Cross multiply
   55,123.42x = 82,699 × 15,680.54
4. Step 4: Simplify right side
   55,123.42x = 1,296,764,977.46
5. Step 5: Solve for x
   x = 1,296,764,977.46/55,123.42
6. Step 6: Final answer
   x = 23,524.76