Finding the Fourth Proportional to 28,294.58, 42,448.46 and 8,303.27

Step by Step Solution

1. Step 1: Write the proportion equation
   28,294.58 : 42,448.46 = 8,303.27 : x
2. Step 2: Convert to fraction form
   28,294.58/42,448.46 = 8,303.27/x
3. Step 3: Cross multiply
   28,294.58x = 42,448.46 × 8,303.27
4. Step 4: Simplify right side
   28,294.58x = 352,460,770.71
5. Step 5: Solve for x
   x = 352,460,770.71/28,294.58
6. Step 6: Final answer
   x = 12,456.83