Finding the Fourth Proportional to 37,379.07, 56,078.69 and 12,423.15

Step by Step Solution

1. Step 1: Write the proportion equation
   37,379.07 : 56,078.69 = 12,423.15 : x
2. Step 2: Convert to fraction form
   37,379.07/56,078.69 = 12,423.15/x
3. Step 3: Cross multiply
   37,379.07x = 56,078.69 × 12,423.15
4. Step 4: Simplify right side
   37,379.07x = 696,673,977.67
5. Step 5: Solve for x
   x = 696,673,977.67/37,379.07
6. Step 6: Final answer
   x = 18,638.08