Finding the Fourth Proportional to 55,243.96, 82,865.89 and 13,690.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,243.96 : 82,865.89 = 13,690.96 : x
2. Step 2: Convert to fraction form
   55,243.96/82,865.89 = 13,690.96/x
3. Step 3: Cross multiply
   55,243.96x = 82,865.89 × 13,690.96
4. Step 4: Simplify right side
   55,243.96x = 1,134,513,585.35
5. Step 5: Solve for x
   x = 1,134,513,585.35/55,243.96
6. Step 6: Final answer
   x = 20,536.43