Finding the Fourth Proportional to 10,855.90, 14,980.71 and 6,141.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,855.90 : 14,980.71 = 6,141.16 : x
2. Step 2: Convert to fraction form
   10,855.90/14,980.71 = 6,141.16/x
3. Step 3: Cross multiply
   10,855.90x = 14,980.71 × 6,141.16
4. Step 4: Simplify right side
   10,855.90x = 91,998,937.02
5. Step 5: Solve for x
   x = 91,998,937.02/10,855.90
6. Step 6: Final answer
   x = 8,474.56