Finding the Fourth Proportional to 55,123.12, 82,687.41 and 15,686.04

Step by Step Solution

1. Step 1: Write the proportion equation
   55,123.12 : 82,687.41 = 15,686.04 : x
2. Step 2: Convert to fraction form
   55,123.12/82,687.41 = 15,686.04/x
3. Step 3: Cross multiply
   55,123.12x = 82,687.41 × 15,686.04
4. Step 4: Simplify right side
   55,123.12x = 1,297,038,020.76
5. Step 5: Solve for x
   x = 1,297,038,020.76/55,123.12
6. Step 6: Final answer
   x = 23,529.84