Finding the Fourth Proportional to 42,727.46, 64,090.94 and 17,426.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,727.46 : 64,090.94 = 17,426.88 : x
2. Step 2: Convert to fraction form
   42,727.46/64,090.94 = 17,426.88/x
3. Step 3: Cross multiply
   42,727.46x = 64,090.94 × 17,426.88
4. Step 4: Simplify right side
   42,727.46x = 1,116,905,033.33
5. Step 5: Solve for x
   x = 1,116,905,033.33/42,727.46
6. Step 6: Final answer
   x = 26,140.22