Finding the Fourth Proportional to 30,804.86, 42,507.54 and 22,742.79

Step by Step Solution

1. Step 1: Write the proportion equation
   30,804.86 : 42,507.54 = 22,742.79 : x
2. Step 2: Convert to fraction form
   30,804.86/42,507.54 = 22,742.79/x
3. Step 3: Cross multiply
   30,804.86x = 42,507.54 × 22,742.79
4. Step 4: Simplify right side
   30,804.86x = 966,740,055.64
5. Step 5: Solve for x
   x = 966,740,055.64/30,804.86
6. Step 6: Final answer
   x = 31,382.72