Finding the Fourth Proportional to 42,725.43, 64,093.26 and 17,782.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,725.43 : 64,093.26 = 17,782.34 : x
2. Step 2: Convert to fraction form
   42,725.43/64,093.26 = 17,782.34/x
3. Step 3: Cross multiply
   42,725.43x = 64,093.26 × 17,782.34
4. Step 4: Simplify right side
   42,725.43x = 1,139,727,820.56
5. Step 5: Solve for x
   x = 1,139,727,820.56/42,725.43
6. Step 6: Final answer
   x = 26,675.63