Finding the Fourth Proportional to 10,985.64, 15,160.05 and 5,949.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,985.64 : 15,160.05 = 5,949.87 : x
2. Step 2: Convert to fraction form
   10,985.64/15,160.05 = 5,949.87/x
3. Step 3: Cross multiply
   10,985.64x = 15,160.05 × 5,949.87
4. Step 4: Simplify right side
   10,985.64x = 90,200,326.69
5. Step 5: Solve for x
   x = 90,200,326.69/10,985.64
6. Step 6: Final answer
   x = 8,210.75