Finding the Fourth Proportional to 15,561.05, 21,468.15 and 8,753.49

Step by Step Solution

1. Step 1: Write the proportion equation
   15,561.05 : 21,468.15 = 8,753.49 : x
2. Step 2: Convert to fraction form
   15,561.05/21,468.15 = 8,753.49/x
3. Step 3: Cross multiply
   15,561.05x = 21,468.15 × 8,753.49
4. Step 4: Simplify right side
   15,561.05x = 187,921,236.34
5. Step 5: Solve for x
   x = 187,921,236.34/15,561.05
6. Step 6: Final answer
   x = 12,076.39