Finding the Fourth Proportional to 22,406.35, 30,899.73 and 13,909.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,406.35 : 30,899.73 = 13,909.81 : x
2. Step 2: Convert to fraction form
   22,406.35/30,899.73 = 13,909.81/x
3. Step 3: Cross multiply
   22,406.35x = 30,899.73 × 13,909.81
4. Step 4: Simplify right side
   22,406.35x = 429,809,373.35
5. Step 5: Solve for x
   x = 429,809,373.35/22,406.35
6. Step 6: Final answer
   x = 19,182.48