Finding the Fourth Proportional to 49,714.29, 74,570.76 and 18,131.31

Step by Step Solution

1. Step 1: Write the proportion equation
   49,714.29 : 74,570.76 = 18,131.31 : x
2. Step 2: Convert to fraction form
   49,714.29/74,570.76 = 18,131.31/x
3. Step 3: Cross multiply
   49,714.29x = 74,570.76 × 18,131.31
4. Step 4: Simplify right side
   49,714.29x = 1,352,065,566.50
5. Step 5: Solve for x
   x = 1,352,065,566.50/49,714.29
6. Step 6: Final answer
   x = 27,196.72