Finding the Fourth Proportional to 13,945.57, 19,244.52 and 7,572.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,945.57 : 19,244.52 = 7,572.15 : x
2. Step 2: Convert to fraction form
   13,945.57/19,244.52 = 7,572.15/x
3. Step 3: Cross multiply
   13,945.57x = 19,244.52 × 7,572.15
4. Step 4: Simplify right side
   13,945.57x = 145,722,392.12
5. Step 5: Solve for x
   x = 145,722,392.12/13,945.57
6. Step 6: Final answer
   x = 10,449.37