Finding the Fourth Proportional to 12,969.56, 17,898.90 and 7,380.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,969.56 : 17,898.90 = 7,380.56 : x
2. Step 2: Convert to fraction form
   12,969.56/17,898.90 = 7,380.56/x
3. Step 3: Cross multiply
   12,969.56x = 17,898.90 × 7,380.56
4. Step 4: Simplify right side
   12,969.56x = 132,103,905.38
5. Step 5: Solve for x
   x = 132,103,905.38/12,969.56
6. Step 6: Final answer
   x = 10,185.69