Finding the Fourth Proportional to 22,685.72, 34,050.12 and 13,937.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,685.72 : 34,050.12 = 13,937.72 : x
2. Step 2: Convert to fraction form
   22,685.72/34,050.12 = 13,937.72/x
3. Step 3: Cross multiply
   22,685.72x = 34,050.12 × 13,937.72
4. Step 4: Simplify right side
   22,685.72x = 474,581,038.53
5. Step 5: Solve for x
   x = 474,581,038.53/22,685.72
6. Step 6: Final answer
   x = 20,919.81