Finding the Fourth Proportional to 22,561.23, 31,115.61 and 16,909.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,561.23 : 31,115.61 = 16,909.25 : x
2. Step 2: Convert to fraction form
   22,561.23/31,115.61 = 16,909.25/x
3. Step 3: Cross multiply
   22,561.23x = 31,115.61 × 16,909.25
4. Step 4: Simplify right side
   22,561.23x = 526,141,472.81
5. Step 5: Solve for x
   x = 526,141,472.81/22,561.23
6. Step 6: Final answer
   x = 23,320.60