Finding the Fourth Proportional to 15,014.88, 20,719.89 and 8,300.16

Step by Step Solution

1. Step 1: Write the proportion equation
   15,014.88 : 20,719.89 = 8,300.16 : x
2. Step 2: Convert to fraction form
   15,014.88/20,719.89 = 8,300.16/x
3. Step 3: Cross multiply
   15,014.88x = 20,719.89 × 8,300.16
4. Step 4: Simplify right side
   15,014.88x = 171,978,402.18
5. Step 5: Solve for x
   x = 171,978,402.18/15,014.88
6. Step 6: Final answer
   x = 11,453.86