Finding the Fourth Proportional to 11,767.35, 17,649.32 and 3,870.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,767.35 : 17,649.32 = 3,870.17 : x
2. Step 2: Convert to fraction form
   11,767.35/17,649.32 = 3,870.17/x
3. Step 3: Cross multiply
   11,767.35x = 17,649.32 × 3,870.17
4. Step 4: Simplify right side
   11,767.35x = 68,305,761.19
5. Step 5: Solve for x
   x = 68,305,761.19/11,767.35
6. Step 6: Final answer
   x = 5,804.69