Finding the Fourth Proportional to 10,340.62, 14,278.35 and 7,191.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,340.62 : 14,278.35 = 7,191.34 : x
2. Step 2: Convert to fraction form
   10,340.62/14,278.35 = 7,191.34/x
3. Step 3: Cross multiply
   10,340.62x = 14,278.35 × 7,191.34
4. Step 4: Simplify right side
   10,340.62x = 102,680,469.49
5. Step 5: Solve for x
   x = 102,680,469.49/10,340.62
6. Step 6: Final answer
   x = 9,929.82