Finding the Fourth Proportional to 37,958.55, 56,899.72 and 12,981.51

Step by Step Solution

1. Step 1: Write the proportion equation
   37,958.55 : 56,899.72 = 12,981.51 : x
2. Step 2: Convert to fraction form
   37,958.55/56,899.72 = 12,981.51/x
3. Step 3: Cross multiply
   37,958.55x = 56,899.72 × 12,981.51
4. Step 4: Simplify right side
   37,958.55x = 738,643,934.77
5. Step 5: Solve for x
   x = 738,643,934.77/37,958.55
6. Step 6: Final answer
   x = 19,459.23