Finding the Fourth Proportional to 42,958.58, 64,462.98 and 17,996.51

Step by Step Solution

1. Step 1: Write the proportion equation
   42,958.58 : 64,462.98 = 17,996.51 : x
2. Step 2: Convert to fraction form
   42,958.58/64,462.98 = 17,996.51/x
3. Step 3: Cross multiply
   42,958.58x = 64,462.98 × 17,996.51
4. Step 4: Simplify right side
   42,958.58x = 1,160,108,341.88
5. Step 5: Solve for x
   x = 1,160,108,341.88/42,958.58
6. Step 6: Final answer
   x = 27,005.28