Finding the Fourth Proportional to 42,005.04, 57,966.96 and 23,142

Step by Step Solution

1. Step 1: Write the proportion equation
   42,005.04 : 57,966.96 = 23,142 : x
2. Step 2: Convert to fraction form
   42,005.04/57,966.96 = 23,142/x
3. Step 3: Cross multiply
   42,005.04x = 57,966.96 × 23,142
4. Step 4: Simplify right side
   42,005.04x = 1,341,471,388.32
5. Step 5: Solve for x
   x = 1,341,471,388.32/42,005.04
6. Step 6: Final answer
   x = 31,935.96