Finding the Fourth Proportional to 42,926.14, 64,405.41 and 17,983

Step by Step Solution

1. Step 1: Write the proportion equation
   42,926.14 : 64,405.41 = 17,983 : x
2. Step 2: Convert to fraction form
   42,926.14/64,405.41 = 17,983/x
3. Step 3: Cross multiply
   42,926.14x = 64,405.41 × 17,983
4. Step 4: Simplify right side
   42,926.14x = 1,158,202,488.03
5. Step 5: Solve for x
   x = 1,158,202,488.03/42,926.14
6. Step 6: Final answer
   x = 26,981.29