Finding the Fourth Proportional to 22,129.83, 30,751.28 and 21,902.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,129.83 : 30,751.28 = 21,902.27 : x
2. Step 2: Convert to fraction form
   22,129.83/30,751.28 = 21,902.27/x
3. Step 3: Cross multiply
   22,129.83x = 30,751.28 × 21,902.27
4. Step 4: Simplify right side
   22,129.83x = 673,522,656.27
5. Step 5: Solve for x
   x = 673,522,656.27/22,129.83
6. Step 6: Final answer
   x = 30,435.06