Finding the Fourth Proportional to 9,400.30, 12,972.41 and 5,623.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,400.30 : 12,972.41 = 5,623.62 : x
2. Step 2: Convert to fraction form
   9,400.30/12,972.41 = 5,623.62/x
3. Step 3: Cross multiply
   9,400.30x = 12,972.41 × 5,623.62
4. Step 4: Simplify right side
   9,400.30x = 72,951,936.76
5. Step 5: Solve for x
   x = 72,951,936.76/9,400.30
6. Step 6: Final answer
   x = 7,760.60