Finding the Fourth Proportional to 28,231.57, 42,289.93 and 22,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,231.57 : 42,289.93 = 22,654.72 : x
2. Step 2: Convert to fraction form
   28,231.57/42,289.93 = 22,654.72/x
3. Step 3: Cross multiply
   28,231.57x = 42,289.93 × 22,654.72
4. Step 4: Simplify right side
   28,231.57x = 958,066,522.97
5. Step 5: Solve for x
   x = 958,066,522.97/28,231.57
6. Step 6: Final answer
   x = 33,936.00