Finding the Fourth Proportional to 11,918.33, 17,877.72 and 3,153.47

Step by Step Solution

1. Step 1: Write the proportion equation
   11,918.33 : 17,877.72 = 3,153.47 : x
2. Step 2: Convert to fraction form
   11,918.33/17,877.72 = 3,153.47/x
3. Step 3: Cross multiply
   11,918.33x = 17,877.72 × 3,153.47
4. Step 4: Simplify right side
   11,918.33x = 56,376,853.69
5. Step 5: Solve for x
   x = 56,376,853.69/11,918.33
6. Step 6: Final answer
   x = 4,730.26