Finding the Fourth Proportional to 14,499.76, 21,768 and 12,064.36

Step by Step Solution

1. Step 1: Write the proportion equation
   14,499.76 : 21,768 = 12,064.36 : x
2. Step 2: Convert to fraction form
   14,499.76/21,768 = 12,064.36/x
3. Step 3: Cross multiply
   14,499.76x = 21,768 × 12,064.36
4. Step 4: Simplify right side
   14,499.76x = 262,616,988.48
5. Step 5: Solve for x
   x = 262,616,988.48/14,499.76
6. Step 6: Final answer
   x = 18,111.82