Finding the Fourth Proportional to 10,156.59, 15,222.59 and 8,926.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,156.59 : 15,222.59 = 8,926.41 : x
2. Step 2: Convert to fraction form
   10,156.59/15,222.59 = 8,926.41/x
3. Step 3: Cross multiply
   10,156.59x = 15,222.59 × 8,926.41
4. Step 4: Simplify right side
   10,156.59x = 135,882,958.86
5. Step 5: Solve for x
   x = 135,882,958.86/10,156.59
6. Step 6: Final answer
   x = 13,378.79