Finding the Fourth Proportional to 42,017.12, 57,984.88 and 23,155.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017.12 : 57,984.88 = 23,155.46 : x
2. Step 2: Convert to fraction form
   42,017.12/57,984.88 = 23,155.46/x
3. Step 3: Cross multiply
   42,017.12x = 57,984.88 × 23,155.46
4. Step 4: Simplify right side
   42,017.12x = 1,342,666,569.44
5. Step 5: Solve for x
   x = 1,342,666,569.44/42,017.12
6. Step 6: Final answer
   x = 31,955.23