Finding the Fourth Proportional to 28,126.56, 42,201.48 and 12,323.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,126.56 : 42,201.48 = 12,323.42 : x
2. Step 2: Convert to fraction form
   28,126.56/42,201.48 = 12,323.42/x
3. Step 3: Cross multiply
   28,126.56x = 42,201.48 × 12,323.42
4. Step 4: Simplify right side
   28,126.56x = 520,066,562.66
5. Step 5: Solve for x
   x = 520,066,562.66/28,126.56
6. Step 6: Final answer
   x = 18,490.23