Finding the Fourth Proportional to 61,179.39, 91,714.73 and 21,731.31

Step by Step Solution

1. Step 1: Write the proportion equation
   61,179.39 : 91,714.73 = 21,731.31 : x
2. Step 2: Convert to fraction form
   61,179.39/91,714.73 = 21,731.31/x
3. Step 3: Cross multiply
   61,179.39x = 91,714.73 × 21,731.31
4. Step 4: Simplify right side
   61,179.39x = 1,993,081,120.54
5. Step 5: Solve for x
   x = 1,993,081,120.54/61,179.39
6. Step 6: Final answer
   x = 32,577.66