Finding the Fourth Proportional to 42,969.04, 64,456.64 and 17,983.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,969.04 : 64,456.64 = 17,983.94 : x
2. Step 2: Convert to fraction form
   42,969.04/64,456.64 = 17,983.94/x
3. Step 3: Cross multiply
   42,969.04x = 64,456.64 × 17,983.94
4. Step 4: Simplify right side
   42,969.04x = 1,159,184,346.36
5. Step 5: Solve for x
   x = 1,159,184,346.36/42,969.04
6. Step 6: Final answer
   x = 26,977.20