Finding the Fourth Proportional to 13,064.69, 18,036.96 and 7,962.11

Step by Step Solution

1. Step 1: Write the proportion equation
   13,064.69 : 18,036.96 = 7,962.11 : x
2. Step 2: Convert to fraction form
   13,064.69/18,036.96 = 7,962.11/x
3. Step 3: Cross multiply
   13,064.69x = 18,036.96 × 7,962.11
4. Step 4: Simplify right side
   13,064.69x = 143,612,259.59
5. Step 5: Solve for x
   x = 143,612,259.59/13,064.69
6. Step 6: Final answer
   x = 10,992.40