Finding the Fourth Proportional to 31,151.44, 42,994.56 and 18,577

Step by Step Solution

1. Step 1: Write the proportion equation
   31,151.44 : 42,994.56 = 18,577 : x
2. Step 2: Convert to fraction form
   31,151.44/42,994.56 = 18,577/x
3. Step 3: Cross multiply
   31,151.44x = 42,994.56 × 18,577
4. Step 4: Simplify right side
   31,151.44x = 798,709,941.12
5. Step 5: Solve for x
   x = 798,709,941.12/31,151.44
6. Step 6: Final answer
   x = 25,639.58