Finding the Fourth Proportional to 7,240.30, 10,856.78 and 3,536.98

Step by Step Solution

1. Step 1: Write the proportion equation
   7,240.30 : 10,856.78 = 3,536.98 : x
2. Step 2: Convert to fraction form
   7,240.30/10,856.78 = 3,536.98/x
3. Step 3: Cross multiply
   7,240.30x = 10,856.78 × 3,536.98
4. Step 4: Simplify right side
   7,240.30x = 38,400,213.72
5. Step 5: Solve for x
   x = 38,400,213.72/7,240.30
6. Step 6: Final answer
   x = 5,303.68