Finding the Fourth Proportional to 42,723.92, 64,091.00 and 17,780.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,723.92 : 64,091.00 = 17,780.83 : x
2. Step 2: Convert to fraction form
   42,723.92/64,091.00 = 17,780.83/x
3. Step 3: Cross multiply
   42,723.92x = 64,091.00 × 17,780.83
4. Step 4: Simplify right side
   42,723.92x = 1,139,591,059.75
5. Step 5: Solve for x
   x = 1,139,591,059.75/42,723.92
6. Step 6: Final answer
   x = 26,673.37