Finding the Fourth Proportional to 10,667.98, 16,003.85 and 3,646.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.98 : 16,003.85 = 3,646.35 : x
2. Step 2: Convert to fraction form
   10,667.98/16,003.85 = 3,646.35/x
3. Step 3: Cross multiply
   10,667.98x = 16,003.85 × 3,646.35
4. Step 4: Simplify right side
   10,667.98x = 58,355,638.45
5. Step 5: Solve for x
   x = 58,355,638.45/10,667.98
6. Step 6: Final answer
   x = 5,470.17