Finding the Fourth Proportional to 42,745.50, 64,123.38 and 17,802.45

Step by Step Solution

1. Step 1: Write the proportion equation
   42,745.50 : 64,123.38 = 17,802.45 : x
2. Step 2: Convert to fraction form
   42,745.50/64,123.38 = 17,802.45/x
3. Step 3: Cross multiply
   42,745.50x = 64,123.38 × 17,802.45
4. Step 4: Simplify right side
   42,745.50x = 1,141,553,266.28
5. Step 5: Solve for x
   x = 1,141,553,266.28/42,745.50
6. Step 6: Final answer
   x = 26,705.81