Finding the Fourth Proportional to 22,810.32, 34,276.23 and 12,288.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,810.32 : 34,276.23 = 12,288.42 : x
2. Step 2: Convert to fraction form
   22,810.32/34,276.23 = 12,288.42/x
3. Step 3: Cross multiply
   22,810.32x = 34,276.23 × 12,288.42
4. Step 4: Simplify right side
   22,810.32x = 421,200,710.26
5. Step 5: Solve for x
   x = 421,200,710.26/22,810.32
6. Step 6: Final answer
   x = 18,465.36