Finding the Fourth Proportional to 35,760.12, 49,341.78 and 21,613.76

Step by Step Solution

1. Step 1: Write the proportion equation
   35,760.12 : 49,341.78 = 21,613.76 : x
2. Step 2: Convert to fraction form
   35,760.12/49,341.78 = 21,613.76/x
3. Step 3: Cross multiply
   35,760.12x = 49,341.78 × 21,613.76
4. Step 4: Simplify right side
   35,760.12x = 1,066,461,390.89
5. Step 5: Solve for x
   x = 1,066,461,390.89/35,760.12
6. Step 6: Final answer
   x = 29,822.65