Finding the Fourth Proportional to 37,038.76, 55,563.90 and 12,409

Step by Step Solution

1. Step 1: Write the proportion equation
   37,038.76 : 55,563.90 = 12,409 : x
2. Step 2: Convert to fraction form
   37,038.76/55,563.90 = 12,409/x
3. Step 3: Cross multiply
   37,038.76x = 55,563.90 × 12,409
4. Step 4: Simplify right side
   37,038.76x = 689,492,435.10
5. Step 5: Solve for x
   x = 689,492,435.10/37,038.76
6. Step 6: Final answer
   x = 18,615.43