Finding the Fourth Proportional to 15,069.51, 20,796.59 and 8,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15,069.51 : 20,796.59 = 8,354.72 : x
2. Step 2: Convert to fraction form
   15,069.51/20,796.59 = 8,354.72/x
3. Step 3: Cross multiply
   15,069.51x = 20,796.59 × 8,354.72
4. Step 4: Simplify right side
   15,069.51x = 173,749,686.40
5. Step 5: Solve for x
   x = 173,749,686.40/15,069.51
6. Step 6: Final answer
   x = 11,529.88