Finding the Fourth Proportional to 9,337.37, 12,885.71 and 5,145.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.37 : 12,885.71 = 5,145.53 : x
2. Step 2: Convert to fraction form
   9,337.37/12,885.71 = 5,145.53/x
3. Step 3: Cross multiply
   9,337.37x = 12,885.71 × 5,145.53
4. Step 4: Simplify right side
   9,337.37x = 66,303,807.38
5. Step 5: Solve for x
   x = 66,303,807.38/9,337.37
6. Step 6: Final answer
   x = 7,100.91