Finding the Fourth Proportional to 28,097.55, 42,141.67 and 8,371.49

Step by Step Solution

1. Step 1: Write the proportion equation
   28,097.55 : 42,141.67 = 8,371.49 : x
2. Step 2: Convert to fraction form
   28,097.55/42,141.67 = 8,371.49/x
3. Step 3: Cross multiply
   28,097.55x = 42,141.67 × 8,371.49
4. Step 4: Simplify right side
   28,097.55x = 352,788,337.35
5. Step 5: Solve for x
   x = 352,788,337.35/28,097.55
6. Step 6: Final answer
   x = 12,555.84