Finding the Fourth Proportional to 28,623.15, 42,929.76 and 7,563.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,623.15 : 42,929.76 = 7,563.42 : x
2. Step 2: Convert to fraction form
   28,623.15/42,929.76 = 7,563.42/x
3. Step 3: Cross multiply
   28,623.15x = 42,929.76 × 7,563.42
4. Step 4: Simplify right side
   28,623.15x = 324,695,805.38
5. Step 5: Solve for x
   x = 324,695,805.38/28,623.15
6. Step 6: Final answer
   x = 11,343.82