Finding the Fourth Proportional to 42,716.49, 64,079.86 and 17,773.41

Step by Step Solution

1. Step 1: Write the proportion equation
   42,716.49 : 64,079.86 = 17,773.41 : x
2. Step 2: Convert to fraction form
   42,716.49/64,079.86 = 17,773.41/x
3. Step 3: Cross multiply
   42,716.49x = 64,079.86 × 17,773.41
4. Step 4: Simplify right side
   42,716.49x = 1,138,917,624.52
5. Step 5: Solve for x
   x = 1,138,917,624.52/42,716.49
6. Step 6: Final answer
   x = 26,662.25