Finding the Fourth Proportional to 28,443.38, 42,664.73 and 22,208.53

Step by Step Solution

1. Step 1: Write the proportion equation
   28,443.38 : 42,664.73 = 22,208.53 : x
2. Step 2: Convert to fraction form
   28,443.38/42,664.73 = 22,208.53/x
3. Step 3: Cross multiply
   28,443.38x = 42,664.73 × 22,208.53
4. Step 4: Simplify right side
   28,443.38x = 947,520,798.44
5. Step 5: Solve for x
   x = 947,520,798.44/28,443.38
6. Step 6: Final answer
   x = 33,312.53