Finding the Fourth Proportional to 9,859.52, 14,776.20 and 3,613.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,859.52 : 14,776.20 = 3,613.76 : x
2. Step 2: Convert to fraction form
   9,859.52/14,776.20 = 3,613.76/x
3. Step 3: Cross multiply
   9,859.52x = 14,776.20 × 3,613.76
4. Step 4: Simplify right side
   9,859.52x = 53,397,640.51
5. Step 5: Solve for x
   x = 53,397,640.51/9,859.52
6. Step 6: Final answer
   x = 5,415.85