Finding the Fourth Proportional to 31,511.96, 43,493.90 and 19,584.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,511.96 : 43,493.90 = 19,584.28 : x
2. Step 2: Convert to fraction form
   31,511.96/43,493.90 = 19,584.28/x
3. Step 3: Cross multiply
   31,511.96x = 43,493.90 × 19,584.28
4. Step 4: Simplify right side
   31,511.96x = 851,796,715.89
5. Step 5: Solve for x
   x = 851,796,715.89/31,511.96
6. Step 6: Final answer
   x = 27,030.90