Finding the Fourth Proportional to 28,227.30, 42,347.98 and 19,923.52

Step by Step Solution

1. Step 1: Write the proportion equation
   28,227.30 : 42,347.98 = 19,923.52 : x
2. Step 2: Convert to fraction form
   28,227.30/42,347.98 = 19,923.52/x
3. Step 3: Cross multiply
   28,227.30x = 42,347.98 × 19,923.52
4. Step 4: Simplify right side
   28,227.30x = 843,720,826.49
5. Step 5: Solve for x
   x = 843,720,826.49/28,227.30
6. Step 6: Final answer
   x = 29,890.24