Finding the Fourth Proportional to 31,156.92, 42,982.38 and 18,577.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,156.92 : 42,982.38 = 18,577.08 : x
2. Step 2: Convert to fraction form
   31,156.92/42,982.38 = 18,577.08/x
3. Step 3: Cross multiply
   31,156.92x = 42,982.38 × 18,577.08
4. Step 4: Simplify right side
   31,156.92x = 798,487,111.85
5. Step 5: Solve for x
   x = 798,487,111.85/31,156.92
6. Step 6: Final answer
   x = 25,627.92