Finding the Fourth Proportional to 28,195.82, 42,277.34 and 10,667.02

Step by Step Solution

1. Step 1: Write the proportion equation
   28,195.82 : 42,277.34 = 10,667.02 : x
2. Step 2: Convert to fraction form
   28,195.82/42,277.34 = 10,667.02/x
3. Step 3: Cross multiply
   28,195.82x = 42,277.34 × 10,667.02
4. Step 4: Simplify right side
   28,195.82x = 450,973,231.33
5. Step 5: Solve for x
   x = 450,973,231.33/28,195.82
6. Step 6: Final answer
   x = 15,994.33