Finding the Fourth Proportional to 9,400.16, 12,970.12 and 5,622.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,400.16 : 12,970.12 = 5,622.76 : x
2. Step 2: Convert to fraction form
   9,400.16/12,970.12 = 5,622.76/x
3. Step 3: Cross multiply
   9,400.16x = 12,970.12 × 5,622.76
4. Step 4: Simplify right side
   9,400.16x = 72,927,871.93
5. Step 5: Solve for x
   x = 72,927,871.93/9,400.16
6. Step 6: Final answer
   x = 7,758.15