Finding the Fourth Proportional to 10,983.60, 16,473.42 and 5,435.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.60 : 16,473.42 = 5,435.16 : x
2. Step 2: Convert to fraction form
   10,983.60/16,473.42 = 5,435.16/x
3. Step 3: Cross multiply
   10,983.60x = 16,473.42 × 5,435.16
4. Step 4: Simplify right side
   10,983.60x = 89,535,673.45
5. Step 5: Solve for x
   x = 89,535,673.45/10,983.60
6. Step 6: Final answer
   x = 8,151.76