Finding the Fourth Proportional to 37,085.39, 55,631.50 and 12,125.57

Step by Step Solution

1. Step 1: Write the proportion equation
   37,085.39 : 55,631.50 = 12,125.57 : x
2. Step 2: Convert to fraction form
   37,085.39/55,631.50 = 12,125.57/x
3. Step 3: Cross multiply
   37,085.39x = 55,631.50 × 12,125.57
4. Step 4: Simplify right side
   37,085.39x = 674,563,647.46
5. Step 5: Solve for x
   x = 674,563,647.46/37,085.39
6. Step 6: Final answer
   x = 18,189.47