Finding the Fourth Proportional to 11,967.75, 17,955.04 and 4,072.00

Step by Step Solution

1. Step 1: Write the proportion equation
   11,967.75 : 17,955.04 = 4,072.00 : x
2. Step 2: Convert to fraction form
   11,967.75/17,955.04 = 4,072.00/x
3. Step 3: Cross multiply
   11,967.75x = 17,955.04 × 4,072.00
4. Step 4: Simplify right side
   11,967.75x = 73,112,870.07
5. Step 5: Solve for x
   x = 73,112,870.07/11,967.75
6. Step 6: Final answer
   x = 6,109.16