Finding the Fourth Proportional to 37,648.63, 56,461.42 and 12,681.98

Step by Step Solution

1. Step 1: Write the proportion equation
   37,648.63 : 56,461.42 = 12,681.98 : x
2. Step 2: Convert to fraction form
   37,648.63/56,461.42 = 12,681.98/x
3. Step 3: Cross multiply
   37,648.63x = 56,461.42 × 12,681.98
4. Step 4: Simplify right side
   37,648.63x = 716,042,535.80
5. Step 5: Solve for x
   x = 716,042,535.80/37,648.63
6. Step 6: Final answer
   x = 19,019.09