Finding the Fourth Proportional to 30,356.50, 45,534.72 and 9,580

Step by Step Solution

1. Step 1: Write the proportion equation
   30,356.50 : 45,534.72 = 9,580 : x
2. Step 2: Convert to fraction form
   30,356.50/45,534.72 = 9,580/x
3. Step 3: Cross multiply
   30,356.50x = 45,534.72 × 9,580
4. Step 4: Simplify right side
   30,356.50x = 436,222,617.60
5. Step 5: Solve for x
   x = 436,222,617.60/30,356.50
6. Step 6: Final answer
   x = 14,369.99