Finding the Fourth Proportional to 19,945.04, 29,880.50 and 7,457.27

Step by Step Solution

1. Step 1: Write the proportion equation
   19,945.04 : 29,880.50 = 7,457.27 : x
2. Step 2: Convert to fraction form
   19,945.04/29,880.50 = 7,457.27/x
3. Step 3: Cross multiply
   19,945.04x = 29,880.50 × 7,457.27
4. Step 4: Simplify right side
   19,945.04x = 222,826,769.55
5. Step 5: Solve for x
   x = 222,826,769.55/19,945.04
6. Step 6: Final answer
   x = 11,172.04