Finding the Fourth Proportional to 10,936.59, 15,090.98 and 6,155.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,936.59 : 15,090.98 = 6,155.72 : x
2. Step 2: Convert to fraction form
   10,936.59/15,090.98 = 6,155.72/x
3. Step 3: Cross multiply
   10,936.59x = 15,090.98 × 6,155.72
4. Step 4: Simplify right side
   10,936.59x = 92,895,892.15
5. Step 5: Solve for x
   x = 92,895,892.15/10,936.59
6. Step 6: Final answer
   x = 8,494.04