Finding the Fourth Proportional to 9,157.02, 12,630.21 and 5,622.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,157.02 : 12,630.21 = 5,622.18 : x
2. Step 2: Convert to fraction form
   9,157.02/12,630.21 = 5,622.18/x
3. Step 3: Cross multiply
   9,157.02x = 12,630.21 × 5,622.18
4. Step 4: Simplify right side
   9,157.02x = 71,009,314.06
5. Step 5: Solve for x
   x = 71,009,314.06/9,157.02
6. Step 6: Final answer
   x = 7,754.63