Finding the Fourth Proportional to 37,423.37, 56,140.55 and 13,405.85

Step by Step Solution

1. Step 1: Write the proportion equation
   37,423.37 : 56,140.55 = 13,405.85 : x
2. Step 2: Convert to fraction form
   37,423.37/56,140.55 = 13,405.85/x
3. Step 3: Cross multiply
   37,423.37x = 56,140.55 × 13,405.85
4. Step 4: Simplify right side
   37,423.37x = 752,611,792.22
5. Step 5: Solve for x
   x = 752,611,792.22/37,423.37
6. Step 6: Final answer
   x = 20,110.74