Finding the Fourth Proportional to 37,608.50, 56,438.68 and 12,984.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,608.50 : 56,438.68 = 12,984.50 : x
2. Step 2: Convert to fraction form
   37,608.50/56,438.68 = 12,984.50/x
3. Step 3: Cross multiply
   37,608.50x = 56,438.68 × 12,984.50
4. Step 4: Simplify right side
   37,608.50x = 732,828,040.46
5. Step 5: Solve for x
   x = 732,828,040.46/37,608.50
6. Step 6: Final answer
   x = 19,485.70