Finding the Fourth Proportional to 10,970.72, 16,371.72 and 9,804.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,970.72 : 16,371.72 = 9,804.32 : x
2. Step 2: Convert to fraction form
   10,970.72/16,371.72 = 9,804.32/x
3. Step 3: Cross multiply
   10,970.72x = 16,371.72 × 9,804.32
4. Step 4: Simplify right side
   10,970.72x = 160,513,581.83
5. Step 5: Solve for x
   x = 160,513,581.83/10,970.72
6. Step 6: Final answer
   x = 14,631.09