Finding the Fourth Proportional to 9,337.32, 12,885.42 and 5,145.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.32 : 12,885.42 = 5,145.60 : x
2. Step 2: Convert to fraction form
   9,337.32/12,885.42 = 5,145.60/x
3. Step 3: Cross multiply
   9,337.32x = 12,885.42 × 5,145.60
4. Step 4: Simplify right side
   9,337.32x = 66,303,217.15
5. Step 5: Solve for x
   x = 66,303,217.15/9,337.32
6. Step 6: Final answer
   x = 7,100.88