Finding the Fourth Proportional to 22,405.35, 30,898.35 and 13,908.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,405.35 : 30,898.35 = 13,908.81 : x
2. Step 2: Convert to fraction form
   22,405.35/30,898.35 = 13,908.81/x
3. Step 3: Cross multiply
   22,405.35x = 30,898.35 × 13,908.81
4. Step 4: Simplify right side
   22,405.35x = 429,759,279.46
5. Step 5: Solve for x
   x = 429,759,279.46/22,405.35
6. Step 6: Final answer
   x = 19,181.10