Finding the Fourth Proportional to 42,036.67, 63,064.23 and 12,456.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,036.67 : 63,064.23 = 12,456.82 : x
2. Step 2: Convert to fraction form
   42,036.67/63,064.23 = 12,456.82/x
3. Step 3: Cross multiply
   42,036.67x = 63,064.23 × 12,456.82
4. Step 4: Simplify right side
   42,036.67x = 785,579,761.55
5. Step 5: Solve for x
   x = 785,579,761.55/42,036.67
6. Step 6: Final answer
   x = 18,687.96