Finding the Fourth Proportional to 19,003.08, 28,433.34 and 18,003

Step by Step Solution

1. Step 1: Write the proportion equation
   19,003.08 : 28,433.34 = 18,003 : x
2. Step 2: Convert to fraction form
   19,003.08/28,433.34 = 18,003/x
3. Step 3: Cross multiply
   19,003.08x = 28,433.34 × 18,003
4. Step 4: Simplify right side
   19,003.08x = 511,885,420.02
5. Step 5: Solve for x
   x = 511,885,420.02/19,003.08
6. Step 6: Final answer
   x = 26,936.97