Finding the Fourth Proportional to 22,397.67, 30,909.83 and 13,902.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,397.67 : 30,909.83 = 13,902.53 : x
2. Step 2: Convert to fraction form
   22,397.67/30,909.83 = 13,902.53/x
3. Step 3: Cross multiply
   22,397.67x = 30,909.83 × 13,902.53
4. Step 4: Simplify right side
   22,397.67x = 429,724,614.81
5. Step 5: Solve for x
   x = 429,724,614.81/22,397.67
6. Step 6: Final answer
   x = 19,186.13