Finding the Fourth Proportional to 28,227.89, 42,343.88 and 8,507.98

Step by Step Solution

1. Step 1: Write the proportion equation
   28,227.89 : 42,343.88 = 8,507.98 : x
2. Step 2: Convert to fraction form
   28,227.89/42,343.88 = 8,507.98/x
3. Step 3: Cross multiply
   28,227.89x = 42,343.88 × 8,507.98
4. Step 4: Simplify right side
   28,227.89x = 360,260,735.76
5. Step 5: Solve for x
   x = 360,260,735.76/28,227.89
6. Step 6: Final answer
   x = 12,762.58