Finding the Fourth Proportional to 42,408.14, 63,629.82 and 21,336.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,408.14 : 63,629.82 = 21,336.93 : x
2. Step 2: Convert to fraction form
   42,408.14/63,629.82 = 21,336.93/x
3. Step 3: Cross multiply
   42,408.14x = 63,629.82 × 21,336.93
4. Step 4: Simplify right side
   42,408.14x = 1,357,665,015.25
5. Step 5: Solve for x
   x = 1,357,665,015.25/42,408.14
6. Step 6: Final answer
   x = 32,014.26