Finding the Fourth Proportional to 11,404.82, 17,112.64 and 7,900.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,404.82 : 17,112.64 = 7,900.22 : x
2. Step 2: Convert to fraction form
   11,404.82/17,112.64 = 7,900.22/x
3. Step 3: Cross multiply
   11,404.82x = 17,112.64 × 7,900.22
4. Step 4: Simplify right side
   11,404.82x = 135,193,535.22
5. Step 5: Solve for x
   x = 135,193,535.22/11,404.82
6. Step 6: Final answer
   x = 11,854.08