Finding the Fourth Proportional to 42,037.67, 63,065.73 and 12,457.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,037.67 : 63,065.73 = 12,457.82 : x
2. Step 2: Convert to fraction form
   42,037.67/63,065.73 = 12,457.82/x
3. Step 3: Cross multiply
   42,037.67x = 63,065.73 × 12,457.82
4. Step 4: Simplify right side
   42,037.67x = 785,661,512.51
5. Step 5: Solve for x
   x = 785,661,512.51/42,037.67
6. Step 6: Final answer
   x = 18,689.46