Finding the Fourth Proportional to 28,609.83, 42,914.61 and 7,262.55

Step by Step Solution

1. Step 1: Write the proportion equation
   28,609.83 : 42,914.61 = 7,262.55 : x
2. Step 2: Convert to fraction form
   28,609.83/42,914.61 = 7,262.55/x
3. Step 3: Cross multiply
   28,609.83x = 42,914.61 × 7,262.55
4. Step 4: Simplify right side
   28,609.83x = 311,669,500.86
5. Step 5: Solve for x
   x = 311,669,500.86/28,609.83
6. Step 6: Final answer
   x = 10,893.79