Finding the Fourth Proportional to 11,860.22, 17,788.17 and 5,285.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,860.22 : 17,788.17 = 5,285.18 : x
2. Step 2: Convert to fraction form
   11,860.22/17,788.17 = 5,285.18/x
3. Step 3: Cross multiply
   11,860.22x = 17,788.17 × 5,285.18
4. Step 4: Simplify right side
   11,860.22x = 94,013,680.32
5. Step 5: Solve for x
   x = 94,013,680.32/11,860.22
6. Step 6: Final answer
   x = 7,926.81