Finding the Fourth Proportional to 43,074.42, 64,611.57 and 13,494.56

Step by Step Solution

1. Step 1: Write the proportion equation
   43,074.42 : 64,611.57 = 13,494.56 : x
2. Step 2: Convert to fraction form
   43,074.42/64,611.57 = 13,494.56/x
3. Step 3: Cross multiply
   43,074.42x = 64,611.57 × 13,494.56
4. Step 4: Simplify right side
   43,074.42x = 871,904,435.61
5. Step 5: Solve for x
   x = 871,904,435.61/43,074.42
6. Step 6: Final answer
   x = 20,241.82