Finding the Fourth Proportional to 9,141.50, 12,622.40 and 7,013.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.50 : 12,622.40 = 7,013.65 : x
2. Step 2: Convert to fraction form
   9,141.50/12,622.40 = 7,013.65/x
3. Step 3: Cross multiply
   9,141.50x = 12,622.40 × 7,013.65
4. Step 4: Simplify right side
   9,141.50x = 88,529,095.76
5. Step 5: Solve for x
   x = 88,529,095.76/9,141.50
6. Step 6: Final answer
   x = 9,684.31