Finding the Fourth Proportional to 28,569.27, 42,865.18 and 8,849.36

Step by Step Solution

1. Step 1: Write the proportion equation
   28,569.27 : 42,865.18 = 8,849.36 : x
2. Step 2: Convert to fraction form
   28,569.27/42,865.18 = 8,849.36/x
3. Step 3: Cross multiply
   28,569.27x = 42,865.18 × 8,849.36
4. Step 4: Simplify right side
   28,569.27x = 379,329,494.32
5. Step 5: Solve for x
   x = 379,329,494.32/28,569.27
6. Step 6: Final answer
   x = 13,277.53