Finding the Fourth Proportional to 42,671.83, 64,021.43 and 17,723.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,671.83 : 64,021.43 = 17,723.83 : x
2. Step 2: Convert to fraction form
   42,671.83/64,021.43 = 17,723.83/x
3. Step 3: Cross multiply
   42,671.83x = 64,021.43 × 17,723.83
4. Step 4: Simplify right side
   42,671.83x = 1,134,704,941.68
5. Step 5: Solve for x
   x = 1,134,704,941.68/42,671.83
6. Step 6: Final answer
   x = 26,591.43