Finding the Fourth Proportional to 9,364.32, 12,922.74 and 5,172.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,364.32 : 12,922.74 = 5,172.56 : x
2. Step 2: Convert to fraction form
   9,364.32/12,922.74 = 5,172.56/x
3. Step 3: Cross multiply
   9,364.32x = 12,922.74 × 5,172.56
4. Step 4: Simplify right side
   9,364.32x = 66,843,648.01
5. Step 5: Solve for x
   x = 66,843,648.01/9,364.32
6. Step 6: Final answer
   x = 7,138.12