Finding the Fourth Proportional to 42,714.32, 64,043.88 and 17,771.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,714.32 : 64,043.88 = 17,771.56 : x
2. Step 2: Convert to fraction form
   42,714.32/64,043.88 = 17,771.56/x
3. Step 3: Cross multiply
   42,714.32x = 64,043.88 × 17,771.56
4. Step 4: Simplify right side
   42,714.32x = 1,138,159,656.05
5. Step 5: Solve for x
   x = 1,138,159,656.05/42,714.32
6. Step 6: Final answer
   x = 26,645.86