Finding the Fourth Proportional to 41,774.50, 62,667.70 and 13,688.56

Step by Step Solution

1. Step 1: Write the proportion equation
   41,774.50 : 62,667.70 = 13,688.56 : x
2. Step 2: Convert to fraction form
   41,774.50/62,667.70 = 13,688.56/x
3. Step 3: Cross multiply
   41,774.50x = 62,667.70 × 13,688.56
4. Step 4: Simplify right side
   41,774.50x = 857,830,571.51
5. Step 5: Solve for x
   x = 857,830,571.51/41,774.50
6. Step 6: Final answer
   x = 20,534.79