Finding the Fourth Proportional to 37,145.25, 55,726.52 and 12,521.25

Step by Step Solution

1. Step 1: Write the proportion equation
   37,145.25 : 55,726.52 = 12,521.25 : x
2. Step 2: Convert to fraction form
   37,145.25/55,726.52 = 12,521.25/x
3. Step 3: Cross multiply
   37,145.25x = 55,726.52 × 12,521.25
4. Step 4: Simplify right side
   37,145.25x = 697,765,625.94
5. Step 5: Solve for x
   x = 697,765,625.94/37,145.25
6. Step 6: Final answer
   x = 18,784.79