Finding the Fourth Proportional to 43,298.89, 64,947.62 and 13,716.68

Step by Step Solution

1. Step 1: Write the proportion equation
   43,298.89 : 64,947.62 = 13,716.68 : x
2. Step 2: Convert to fraction form
   43,298.89/64,947.62 = 13,716.68/x
3. Step 3: Cross multiply
   43,298.89x = 64,947.62 × 13,716.68
4. Step 4: Simplify right side
   43,298.89x = 890,865,429.86
5. Step 5: Solve for x
   x = 890,865,429.86/43,298.89
6. Step 6: Final answer
   x = 20,574.79