Finding the Fourth Proportional to 42,543.36, 63,836.57 and 17,601.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,543.36 : 63,836.57 = 17,601.31 : x
2. Step 2: Convert to fraction form
   42,543.36/63,836.57 = 17,601.31/x
3. Step 3: Cross multiply
   42,543.36x = 63,836.57 × 17,601.31
4. Step 4: Simplify right side
   42,543.36x = 1,123,606,937.56
5. Step 5: Solve for x
   x = 1,123,606,937.56/42,543.36
6. Step 6: Final answer
   x = 26,410.87