Finding the Fourth Proportional to 11,872.88, 17,802.73 and 4,857.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,872.88 : 17,802.73 = 4,857.81 : x
2. Step 2: Convert to fraction form
   11,872.88/17,802.73 = 4,857.81/x
3. Step 3: Cross multiply
   11,872.88x = 17,802.73 × 4,857.81
4. Step 4: Simplify right side
   11,872.88x = 86,482,279.82
5. Step 5: Solve for x
   x = 86,482,279.82/11,872.88
6. Step 6: Final answer
   x = 7,284.02