Finding the Fourth Proportional to 22,071.50, 30,458.67 and 12,135.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,071.50 : 30,458.67 = 12,135.50 : x
2. Step 2: Convert to fraction form
   22,071.50/30,458.67 = 12,135.50/x
3. Step 3: Cross multiply
   22,071.50x = 30,458.67 × 12,135.50
4. Step 4: Simplify right side
   22,071.50x = 369,631,189.79
5. Step 5: Solve for x
   x = 369,631,189.79/22,071.50
6. Step 6: Final answer
   x = 16,746.99