Finding the Fourth Proportional to 22,389.59, 30,902.05 and 12,835.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,389.59 : 30,902.05 = 12,835.89 : x
2. Step 2: Convert to fraction form
   22,389.59/30,902.05 = 12,835.89/x
3. Step 3: Cross multiply
   22,389.59x = 30,902.05 × 12,835.89
4. Step 4: Simplify right side
   22,389.59x = 396,655,282.48
5. Step 5: Solve for x
   x = 396,655,282.48/22,389.59
6. Step 6: Final answer
   x = 17,716.06