Finding the Fourth Proportional to 19,042.34, 28,581.98 and 9,188.55

Step by Step Solution

1. Step 1: Write the proportion equation
   19,042.34 : 28,581.98 = 9,188.55 : x
2. Step 2: Convert to fraction form
   19,042.34/28,581.98 = 9,188.55/x
3. Step 3: Cross multiply
   19,042.34x = 28,581.98 × 9,188.55
4. Step 4: Simplify right side
   19,042.34x = 262,626,906.39
5. Step 5: Solve for x
   x = 262,626,906.39/19,042.34
6. Step 6: Final answer
   x = 13,791.74