Finding the Fourth Proportional to 9,374.42, 12,936.30 and 5,182.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,374.42 : 12,936.30 = 5,182.64 : x
2. Step 2: Convert to fraction form
   9,374.42/12,936.30 = 5,182.64/x
3. Step 3: Cross multiply
   9,374.42x = 12,936.30 × 5,182.64
4. Step 4: Simplify right side
   9,374.42x = 67,044,185.83
5. Step 5: Solve for x
   x = 67,044,185.83/9,374.42
6. Step 6: Final answer
   x = 7,151.82