Finding the Fourth Proportional to 10,784.21, 16,079.56 and 10,587.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,784.21 : 16,079.56 = 10,587.38 : x
2. Step 2: Convert to fraction form
   10,784.21/16,079.56 = 10,587.38/x
3. Step 3: Cross multiply
   10,784.21x = 16,079.56 × 10,587.38
4. Step 4: Simplify right side
   10,784.21x = 170,240,305.09
5. Step 5: Solve for x
   x = 170,240,305.09/10,784.21
6. Step 6: Final answer
   x = 15,786.08