Finding the Fourth Proportional to 16,422.50, 22,663.05 and 8,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,422.50 : 22,663.05 = 8,970.50 : x
2. Step 2: Convert to fraction form
   16,422.50/22,663.05 = 8,970.50/x
3. Step 3: Cross multiply
   16,422.50x = 22,663.05 × 8,970.50
4. Step 4: Simplify right side
   16,422.50x = 203,298,890.03
5. Step 5: Solve for x
   x = 203,298,890.03/16,422.50
6. Step 6: Final answer
   x = 12,379.29