Finding the Fourth Proportional to 21,091.59, 31,634.96 and 5,510.43

Step by Step Solution

1. Step 1: Write the proportion equation
   21,091.59 : 31,634.96 = 5,510.43 : x
2. Step 2: Convert to fraction form
   21,091.59/31,634.96 = 5,510.43/x
3. Step 3: Cross multiply
   21,091.59x = 31,634.96 × 5,510.43
4. Step 4: Simplify right side
   21,091.59x = 174,322,205.08
5. Step 5: Solve for x
   x = 174,322,205.08/21,091.59
6. Step 6: Final answer
   x = 8,265.01