Finding the Fourth Proportional to 37,681.79, 56,520.90 and 13,994.05

Step by Step Solution

1. Step 1: Write the proportion equation
   37,681.79 : 56,520.90 = 13,994.05 : x
2. Step 2: Convert to fraction form
   37,681.79/56,520.90 = 13,994.05/x
3. Step 3: Cross multiply
   37,681.79x = 56,520.90 × 13,994.05
4. Step 4: Simplify right side
   37,681.79x = 790,956,300.65
5. Step 5: Solve for x
   x = 790,956,300.65/37,681.79
6. Step 6: Final answer
   x = 20,990.41