Finding the Fourth Proportional to 42,776.67, 64,175.94 and 17,808.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,776.67 : 64,175.94 = 17,808.42 : x
2. Step 2: Convert to fraction form
   42,776.67/64,175.94 = 17,808.42/x
3. Step 3: Cross multiply
   42,776.67x = 64,175.94 × 17,808.42
4. Step 4: Simplify right side
   42,776.67x = 1,142,872,093.41
5. Step 5: Solve for x
   x = 1,142,872,093.41/42,776.67
6. Step 6: Final answer
   x = 26,717.18