Finding the Fourth Proportional to 11,567.70, 17,337.98 and 10,178.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,567.70 : 17,337.98 = 10,178.15 : x
2. Step 2: Convert to fraction form
   11,567.70/17,337.98 = 10,178.15/x
3. Step 3: Cross multiply
   11,567.70x = 17,337.98 × 10,178.15
4. Step 4: Simplify right side
   11,567.70x = 176,468,499.89
5. Step 5: Solve for x
   x = 176,468,499.89/11,567.70
6. Step 6: Final answer
   x = 15,255.28