Finding the Fourth Proportional to 9,961.81, 14,945.15 and 3,036.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,961.81 : 14,945.15 = 3,036.31 : x
2. Step 2: Convert to fraction form
   9,961.81/14,945.15 = 3,036.31/x
3. Step 3: Cross multiply
   9,961.81x = 14,945.15 × 3,036.31
4. Step 4: Simplify right side
   9,961.81x = 45,378,108.40
5. Step 5: Solve for x
   x = 45,378,108.40/9,961.81
6. Step 6: Final answer
   x = 4,555.21