Finding the Fourth Proportional to 11,988.18, 17,965.82 and 7,608.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,988.18 : 17,965.82 = 7,608.71 : x
2. Step 2: Convert to fraction form
   11,988.18/17,965.82 = 7,608.71/x
3. Step 3: Cross multiply
   11,988.18x = 17,965.82 × 7,608.71
4. Step 4: Simplify right side
   11,988.18x = 136,696,778.23
5. Step 5: Solve for x
   x = 136,696,778.23/11,988.18
6. Step 6: Final answer
   x = 11,402.63