Finding the Fourth Proportional to 9,190.42, 12,682.04 and 5,211.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,190.42 : 12,682.04 = 5,211.90 : x
2. Step 2: Convert to fraction form
   9,190.42/12,682.04 = 5,211.90/x
3. Step 3: Cross multiply
   9,190.42x = 12,682.04 × 5,211.90
4. Step 4: Simplify right side
   9,190.42x = 66,097,498.22
5. Step 5: Solve for x
   x = 66,097,498.22/9,190.42
6. Step 6: Final answer
   x = 7,192.00