Finding the Fourth Proportional to 9,337.18, 12,885.30 and 5,145.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.18 : 12,885.30 = 5,145.46 : x
2. Step 2: Convert to fraction form
   9,337.18/12,885.30 = 5,145.46/x
3. Step 3: Cross multiply
   9,337.18x = 12,885.30 × 5,145.46
4. Step 4: Simplify right side
   9,337.18x = 66,300,795.74
5. Step 5: Solve for x
   x = 66,300,795.74/9,337.18
6. Step 6: Final answer
   x = 7,100.73