Finding the Fourth Proportional to 37,625.92, 56,447.53 and 12,665.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,625.92 : 56,447.53 = 12,665.31 : x
2. Step 2: Convert to fraction form
   37,625.92/56,447.53 = 12,665.31/x
3. Step 3: Cross multiply
   37,625.92x = 56,447.53 × 12,665.31
4. Step 4: Simplify right side
   37,625.92x = 714,925,611.60
5. Step 5: Solve for x
   x = 714,925,611.60/37,625.92
6. Step 6: Final answer
   x = 19,000.88