Finding the Fourth Proportional to 32,829.89, 49,240.71 and 9,139.21

Step by Step Solution

1. Step 1: Write the proportion equation
   32,829.89 : 49,240.71 = 9,139.21 : x
2. Step 2: Convert to fraction form
   32,829.89/49,240.71 = 9,139.21/x
3. Step 3: Cross multiply
   32,829.89x = 49,240.71 × 9,139.21
4. Step 4: Simplify right side
   32,829.89x = 450,021,066.14
5. Step 5: Solve for x
   x = 450,021,066.14/32,829.89
6. Step 6: Final answer
   x = 13,707.67