Finding the Fourth Proportional to 42,767.89, 64,162.76 and 17,799.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,767.89 : 64,162.76 = 17,799.64 : x
2. Step 2: Convert to fraction form
   42,767.89/64,162.76 = 17,799.64/x
3. Step 3: Cross multiply
   42,767.89x = 64,162.76 × 17,799.64
4. Step 4: Simplify right side
   42,767.89x = 1,142,074,029.41
5. Step 5: Solve for x
   x = 1,142,074,029.41/42,767.89
6. Step 6: Final answer
   x = 26,704.01