Finding the Fourth Proportional to 42,717.54, 64,099.29 and 17,774.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,717.54 : 64,099.29 = 17,774.81 : x
2. Step 2: Convert to fraction form
   42,717.54/64,099.29 = 17,774.81/x
3. Step 3: Cross multiply
   42,717.54x = 64,099.29 × 17,774.81
4. Step 4: Simplify right side
   42,717.54x = 1,139,352,380.39
5. Step 5: Solve for x
   x = 1,139,352,380.39/42,717.54
6. Step 6: Final answer
   x = 26,671.77