Finding the Fourth Proportional to 12,013.34, 16,585.71 and 8,242.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,013.34 : 16,585.71 = 8,242.70 : x
2. Step 2: Convert to fraction form
   12,013.34/16,585.71 = 8,242.70/x
3. Step 3: Cross multiply
   12,013.34x = 16,585.71 × 8,242.70
4. Step 4: Simplify right side
   12,013.34x = 136,711,031.82
5. Step 5: Solve for x
   x = 136,711,031.82/12,013.34
6. Step 6: Final answer
   x = 11,379.94