Finding the Fourth Proportional to 28,016.19, 42,024.42 and 8,295.12

Step by Step Solution

1. Step 1: Write the proportion equation
   28,016.19 : 42,024.42 = 8,295.12 : x
2. Step 2: Convert to fraction form
   28,016.19/42,024.42 = 8,295.12/x
3. Step 3: Cross multiply
   28,016.19x = 42,024.42 × 8,295.12
4. Step 4: Simplify right side
   28,016.19x = 348,597,606.83
5. Step 5: Solve for x
   x = 348,597,606.83/28,016.19
6. Step 6: Final answer
   x = 12,442.72