Finding the Fourth Proportional to 31,124.07, 42,950.52 and 16,977.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,124.07 : 42,950.52 = 16,977.42 : x
2. Step 2: Convert to fraction form
   31,124.07/42,950.52 = 16,977.42/x
3. Step 3: Cross multiply
   31,124.07x = 42,950.52 × 16,977.42
4. Step 4: Simplify right side
   31,124.07x = 729,189,017.26
5. Step 5: Solve for x
   x = 729,189,017.26/31,124.07
6. Step 6: Final answer
   x = 23,428.46