Finding the Fourth Proportional to 42,957.45, 64,461.29 and 17,995.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,957.45 : 64,461.29 = 17,995.38 : x
2. Step 2: Convert to fraction form
   42,957.45/64,461.29 = 17,995.38/x
3. Step 3: Cross multiply
   42,957.45x = 64,461.29 × 17,995.38
4. Step 4: Simplify right side
   42,957.45x = 1,160,005,318.86
5. Step 5: Solve for x
   x = 1,160,005,318.86/42,957.45
6. Step 6: Final answer
   x = 27,003.59