Finding the Fourth Proportional to 16,384.72, 22,611.28 and 9,671.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,384.72 : 22,611.28 = 9,671.98 : x
2. Step 2: Convert to fraction form
   16,384.72/22,611.28 = 9,671.98/x
3. Step 3: Cross multiply
   16,384.72x = 22,611.28 × 9,671.98
4. Step 4: Simplify right side
   16,384.72x = 218,695,847.93
5. Step 5: Solve for x
   x = 218,695,847.93/16,384.72
6. Step 6: Final answer
   x = 13,347.55