Finding the Fourth Proportional to 42,776.94, 64,176.32 and 17,808.68

Step by Step Solution

1. Step 1: Write the proportion equation
   42,776.94 : 64,176.32 = 17,808.68 : x
2. Step 2: Convert to fraction form
   42,776.94/64,176.32 = 17,808.68/x
3. Step 3: Cross multiply
   42,776.94x = 64,176.32 × 17,808.68
4. Step 4: Simplify right side
   42,776.94x = 1,142,895,546.46
5. Step 5: Solve for x
   x = 1,142,895,546.46/42,776.94
6. Step 6: Final answer
   x = 26,717.56