Finding the Fourth Proportional to 11,781.17, 17,646.38 and 5,531.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,781.17 : 17,646.38 = 5,531.82 : x
2. Step 2: Convert to fraction form
   11,781.17/17,646.38 = 5,531.82/x
3. Step 3: Cross multiply
   11,781.17x = 17,646.38 × 5,531.82
4. Step 4: Simplify right side
   11,781.17x = 97,616,597.81
5. Step 5: Solve for x
   x = 97,616,597.81/11,781.17
6. Step 6: Final answer
   x = 8,285.82