Finding the Fourth Proportional to 42,018.94, 57,986.02 and 23,156.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,018.94 : 57,986.02 = 23,156.06 : x
2. Step 2: Convert to fraction form
   42,018.94/57,986.02 = 23,156.06/x
3. Step 3: Cross multiply
   42,018.94x = 57,986.02 × 23,156.06
4. Step 4: Simplify right side
   42,018.94x = 1,342,727,758.28
5. Step 5: Solve for x
   x = 1,342,727,758.28/42,018.94
6. Step 6: Final answer
   x = 31,955.30