Finding the Fourth Proportional to 28,350.50, 42,527.55 and 8,630.51

Step by Step Solution

1. Step 1: Write the proportion equation
   28,350.50 : 42,527.55 = 8,630.51 : x
2. Step 2: Convert to fraction form
   28,350.50/42,527.55 = 8,630.51/x
3. Step 3: Cross multiply
   28,350.50x = 42,527.55 × 8,630.51
4. Step 4: Simplify right side
   28,350.50x = 367,034,445.55
5. Step 5: Solve for x
   x = 367,034,445.55/28,350.50
6. Step 6: Final answer
   x = 12,946.31