Finding the Fourth Proportional to 42,976.24, 64,462.93 and 17,674.87

Step by Step Solution

1. Step 1: Write the proportion equation
   42,976.24 : 64,462.93 = 17,674.87 : x
2. Step 2: Convert to fraction form
   42,976.24/64,462.93 = 17,674.87/x
3. Step 3: Cross multiply
   42,976.24x = 64,462.93 × 17,674.87
4. Step 4: Simplify right side
   42,976.24x = 1,139,373,907.57
5. Step 5: Solve for x
   x = 1,139,373,907.57/42,976.24
6. Step 6: Final answer
   x = 26,511.72