Finding the Fourth Proportional to 11,156.59, 16,738.78 and 7,423.36

Step by Step Solution

1. Step 1: Write the proportion equation
   11,156.59 : 16,738.78 = 7,423.36 : x
2. Step 2: Convert to fraction form
   11,156.59/16,738.78 = 7,423.36/x
3. Step 3: Cross multiply
   11,156.59x = 16,738.78 × 7,423.36
4. Step 4: Simplify right side
   11,156.59x = 124,257,989.90
5. Step 5: Solve for x
   x = 124,257,989.90/11,156.59
6. Step 6: Final answer
   x = 11,137.63