Finding the Fourth Proportional to 37,521.50, 56,270.50 and 12,555.71

Step by Step Solution

1. Step 1: Write the proportion equation
   37,521.50 : 56,270.50 = 12,555.71 : x
2. Step 2: Convert to fraction form
   37,521.50/56,270.50 = 12,555.71/x
3. Step 3: Cross multiply
   37,521.50x = 56,270.50 × 12,555.71
4. Step 4: Simplify right side
   37,521.50x = 706,515,977.83
5. Step 5: Solve for x
   x = 706,515,977.83/37,521.50
6. Step 6: Final answer
   x = 18,829.63