Finding the Fourth Proportional to 11,014.29, 15,178.77 and 10,811.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,014.29 : 15,178.77 = 10,811.88 : x
2. Step 2: Convert to fraction form
   11,014.29/15,178.77 = 10,811.88/x
3. Step 3: Cross multiply
   11,014.29x = 15,178.77 × 10,811.88
4. Step 4: Simplify right side
   11,014.29x = 164,111,039.79
5. Step 5: Solve for x
   x = 164,111,039.79/11,014.29
6. Step 6: Final answer
   x = 14,899.83