Finding the Fourth Proportional to 11,767.69, 17,655.58 and 7,380.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,767.69 : 17,655.58 = 7,380.01 : x
2. Step 2: Convert to fraction form
   11,767.69/17,655.58 = 7,380.01/x
3. Step 3: Cross multiply
   11,767.69x = 17,655.58 × 7,380.01
4. Step 4: Simplify right side
   11,767.69x = 130,298,268.68
5. Step 5: Solve for x
   x = 130,298,268.68/11,767.69
6. Step 6: Final answer
   x = 11,072.55