Finding the Fourth Proportional to 9,411.40, 12,985.59 and 5,635.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.40 : 12,985.59 = 5,635.18 : x
2. Step 2: Convert to fraction form
   9,411.40/12,985.59 = 5,635.18/x
3. Step 3: Cross multiply
   9,411.40x = 12,985.59 × 5,635.18
4. Step 4: Simplify right side
   9,411.40x = 73,176,137.06
5. Step 5: Solve for x
   x = 73,176,137.06/9,411.40
6. Step 6: Final answer
   x = 7,775.27