Finding the Fourth Proportional to 10,881.91, 16,323.02 and 3,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,881.91 : 16,323.02 = 3,090.72 : x
2. Step 2: Convert to fraction form
   10,881.91/16,323.02 = 3,090.72/x
3. Step 3: Cross multiply
   10,881.91x = 16,323.02 × 3,090.72
4. Step 4: Simplify right side
   10,881.91x = 50,449,941.72
5. Step 5: Solve for x
   x = 50,449,941.72/10,881.91
6. Step 6: Final answer
   x = 4,636.13