Finding the Fourth Proportional to 33,080.90, 45,634.16 and 20,960.00

Step by Step Solution

1. Step 1: Write the proportion equation
   33,080.90 : 45,634.16 = 20,960.00 : x
2. Step 2: Convert to fraction form
   33,080.90/45,634.16 = 20,960.00/x
3. Step 3: Cross multiply
   33,080.90x = 45,634.16 × 20,960.00
4. Step 4: Simplify right side
   33,080.90x = 956,491,817.83
5. Step 5: Solve for x
   x = 956,491,817.83/33,080.90
6. Step 6: Final answer
   x = 28,913.72