Finding the Fourth Proportional to 10,667.13, 15,967.83 and 6,961.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,667.13 : 15,967.83 = 6,961.38 : x
2. Step 2: Convert to fraction form
   10,667.13/15,967.83 = 6,961.38/x
3. Step 3: Cross multiply
   10,667.13x = 15,967.83 × 6,961.38
4. Step 4: Simplify right side
   10,667.13x = 111,158,132.41
5. Step 5: Solve for x
   x = 111,158,132.41/10,667.13
6. Step 6: Final answer
   x = 10,420.62