Finding the Fourth Proportional to 31,153.12, 42,991.30 and 17,727

Step by Step Solution

1. Step 1: Write the proportion equation
   31,153.12 : 42,991.30 = 17,727 : x
2. Step 2: Convert to fraction form
   31,153.12/42,991.30 = 17,727/x
3. Step 3: Cross multiply
   31,153.12x = 42,991.30 × 17,727
4. Step 4: Simplify right side
   31,153.12x = 762,106,775.10
5. Step 5: Solve for x
   x = 762,106,775.10/31,153.12
6. Step 6: Final answer
   x = 24,463.26