Finding the Fourth Proportional to 14,028.51, 19,359.34 and 8,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,028.51 : 19,359.34 = 8,992.72 : x
2. Step 2: Convert to fraction form
   14,028.51/19,359.34 = 8,992.72/x
3. Step 3: Cross multiply
   14,028.51x = 19,359.34 × 8,992.72
4. Step 4: Simplify right side
   14,028.51x = 174,093,125.72
5. Step 5: Solve for x
   x = 174,093,125.72/14,028.51
6. Step 6: Final answer
   x = 12,409.95