Finding the Fourth Proportional to 9,945.72, 14,918.50 and 3,705.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.72 : 14,918.50 = 3,705.52 : x
2. Step 2: Convert to fraction form
   9,945.72/14,918.50 = 3,705.52/x
3. Step 3: Cross multiply
   9,945.72x = 14,918.50 × 3,705.52
4. Step 4: Simplify right side
   9,945.72x = 55,280,800.12
5. Step 5: Solve for x
   x = 55,280,800.12/9,945.72
6. Step 6: Final answer
   x = 5,558.25