Finding the Fourth Proportional to 37,431.30, 56,141.46 and 12,472.16

Step by Step Solution

1. Step 1: Write the proportion equation
   37,431.30 : 56,141.46 = 12,472.16 : x
2. Step 2: Convert to fraction form
   37,431.30/56,141.46 = 12,472.16/x
3. Step 3: Cross multiply
   37,431.30x = 56,141.46 × 12,472.16
4. Step 4: Simplify right side
   37,431.30x = 700,205,271.75
5. Step 5: Solve for x
   x = 700,205,271.75/37,431.30
6. Step 6: Final answer
   x = 18,706.41