Finding the Fourth Proportional to 15,556.50, 21,460.59 and 10,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,556.50 : 21,460.59 = 10,522.50 : x
2. Step 2: Convert to fraction form
   15,556.50/21,460.59 = 10,522.50/x
3. Step 3: Cross multiply
   15,556.50x = 21,460.59 × 10,522.50
4. Step 4: Simplify right side
   15,556.50x = 225,819,058.28
5. Step 5: Solve for x
   x = 225,819,058.28/15,556.50
6. Step 6: Final answer
   x = 14,516.06