Finding the Fourth Proportional to 28,849.18, 43,159.92 and 21,849.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,849.18 : 43,159.92 = 21,849.42 : x
2. Step 2: Convert to fraction form
   28,849.18/43,159.92 = 21,849.42/x
3. Step 3: Cross multiply
   28,849.18x = 43,159.92 × 21,849.42
4. Step 4: Simplify right side
   28,849.18x = 943,019,219.25
5. Step 5: Solve for x
   x = 943,019,219.25/28,849.18
6. Step 6: Final answer
   x = 32,687.90