Finding the Fourth Proportional to 15,821.72, 21,833.34 and 8,748.14

Step by Step Solution

1. Step 1: Write the proportion equation
   15,821.72 : 21,833.34 = 8,748.14 : x
2. Step 2: Convert to fraction form
   15,821.72/21,833.34 = 8,748.14/x
3. Step 3: Cross multiply
   15,821.72x = 21,833.34 × 8,748.14
4. Step 4: Simplify right side
   15,821.72x = 191,001,005.82
5. Step 5: Solve for x
   x = 191,001,005.82/15,821.72
6. Step 6: Final answer
   x = 12,072.08