Finding the Fourth Proportional to 10,805.87, 14,909.49 and 6,090.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,805.87 : 14,909.49 = 6,090.15 : x
2. Step 2: Convert to fraction form
   10,805.87/14,909.49 = 6,090.15/x
3. Step 3: Cross multiply
   10,805.87x = 14,909.49 × 6,090.15
4. Step 4: Simplify right side
   10,805.87x = 90,801,030.52
5. Step 5: Solve for x
   x = 90,801,030.52/10,805.87
6. Step 6: Final answer
   x = 8,402.94