Finding the Fourth Proportional to 28,045.82, 42,071.16 and 8,055.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,045.82 : 42,071.16 = 8,055.42 : x
2. Step 2: Convert to fraction form
   28,045.82/42,071.16 = 8,055.42/x
3. Step 3: Cross multiply
   28,045.82x = 42,071.16 × 8,055.42
4. Step 4: Simplify right side
   28,045.82x = 338,900,863.69
5. Step 5: Solve for x
   x = 338,900,863.69/28,045.82
6. Step 6: Final answer
   x = 12,083.83