Finding the Fourth Proportional to 37,945.59, 56,902.59 and 12,980.58

Step by Step Solution

1. Step 1: Write the proportion equation
   37,945.59 : 56,902.59 = 12,980.58 : x
2. Step 2: Convert to fraction form
   37,945.59/56,902.59 = 12,980.58/x
3. Step 3: Cross multiply
   37,945.59x = 56,902.59 × 12,980.58
4. Step 4: Simplify right side
   37,945.59x = 738,628,621.70
5. Step 5: Solve for x
   x = 738,628,621.70/37,945.59
6. Step 6: Final answer
   x = 19,465.47