Finding the Fourth Proportional to 37,958.85, 56,930.72 and 12,996.81

Step by Step Solution

1. Step 1: Write the proportion equation
   37,958.85 : 56,930.72 = 12,996.81 : x
2. Step 2: Convert to fraction form
   37,958.85/56,930.72 = 12,996.81/x
3. Step 3: Cross multiply
   37,958.85x = 56,930.72 × 12,996.81
4. Step 4: Simplify right side
   37,958.85x = 739,917,686.02
5. Step 5: Solve for x
   x = 739,917,686.02/37,958.85
6. Step 6: Final answer
   x = 19,492.63