Finding the Fourth Proportional to 12,390.95, 17,096.94 and 7,354.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,390.95 : 17,096.94 = 7,354.46 : x
2. Step 2: Convert to fraction form
   12,390.95/17,096.94 = 7,354.46/x
3. Step 3: Cross multiply
   12,390.95x = 17,096.94 × 7,354.46
4. Step 4: Simplify right side
   12,390.95x = 125,738,675.87
5. Step 5: Solve for x
   x = 125,738,675.87/12,390.95
6. Step 6: Final answer
   x = 10,147.63