Finding the Fourth Proportional to 22,611.66, 31,196.31 and 13,051.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,611.66 : 31,196.31 = 13,051.23 : x
2. Step 2: Convert to fraction form
   22,611.66/31,196.31 = 13,051.23/x
3. Step 3: Cross multiply
   22,611.66x = 31,196.31 × 13,051.23
4. Step 4: Simplify right side
   22,611.66x = 407,150,216.96
5. Step 5: Solve for x
   x = 407,150,216.96/22,611.66
6. Step 6: Final answer
   x = 18,006.21