Finding the Fourth Proportional to 28,066.46, 42,067.87 and 9,342.10

Step by Step Solution

1. Step 1: Write the proportion equation
   28,066.46 : 42,067.87 = 9,342.10 : x
2. Step 2: Convert to fraction form
   28,066.46/42,067.87 = 9,342.10/x
3. Step 3: Cross multiply
   28,066.46x = 42,067.87 × 9,342.10
4. Step 4: Simplify right side
   28,066.46x = 393,002,248.33
5. Step 5: Solve for x
   x = 393,002,248.33/28,066.46
6. Step 6: Final answer
   x = 14,002.56