Finding the Fourth Proportional to 14,885.89, 20,550.87 and 10,131.46

Step by Step Solution

1. Step 1: Write the proportion equation
   14,885.89 : 20,550.87 = 10,131.46 : x
2. Step 2: Convert to fraction form
   14,885.89/20,550.87 = 10,131.46/x
3. Step 3: Cross multiply
   14,885.89x = 20,550.87 × 10,131.46
4. Step 4: Simplify right side
   14,885.89x = 208,210,317.37
5. Step 5: Solve for x
   x = 208,210,317.37/14,885.89
6. Step 6: Final answer
   x = 13,987.09