Finding the Fourth Proportional to 42,747.50, 64,126.38 and 17,804.45

Step by Step Solution

1. Step 1: Write the proportion equation
   42,747.50 : 64,126.38 = 17,804.45 : x
2. Step 2: Convert to fraction form
   42,747.50/64,126.38 = 17,804.45/x
3. Step 3: Cross multiply
   42,747.50x = 64,126.38 × 17,804.45
4. Step 4: Simplify right side
   42,747.50x = 1,141,734,926.39
5. Step 5: Solve for x
   x = 1,141,734,926.39/42,747.50
6. Step 6: Final answer
   x = 26,708.81