Finding the Fourth Proportional to 10,556.96, 14,570.60 and 7,540.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,556.96 : 14,570.60 = 7,540.25 : x
2. Step 2: Convert to fraction form
   10,556.96/14,570.60 = 7,540.25/x
3. Step 3: Cross multiply
   10,556.96x = 14,570.60 × 7,540.25
4. Step 4: Simplify right side
   10,556.96x = 109,865,856.10
5. Step 5: Solve for x
   x = 109,865,856.10/10,556.96
6. Step 6: Final answer
   x = 10,406.96