Finding the Fourth Proportional to 22,070.72, 30,456.96 and 12,511.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,070.72 : 30,456.96 = 12,511.50 : x
2. Step 2: Convert to fraction form
   22,070.72/30,456.96 = 12,511.50/x
3. Step 3: Cross multiply
   22,070.72x = 30,456.96 × 12,511.50
4. Step 4: Simplify right side
   22,070.72x = 381,062,093.91
5. Step 5: Solve for x
   x = 381,062,093.91/22,070.72
6. Step 6: Final answer
   x = 17,265.50