Finding the Fourth Proportional to 9,347.34, 12,915.72 and 7,474.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,347.34 : 12,915.72 = 7,474.38 : x
2. Step 2: Convert to fraction form
   9,347.34/12,915.72 = 7,474.38/x
3. Step 3: Cross multiply
   9,347.34x = 12,915.72 × 7,474.38
4. Step 4: Simplify right side
   9,347.34x = 96,536,999.25
5. Step 5: Solve for x
   x = 96,536,999.25/9,347.34
6. Step 6: Final answer
   x = 10,327.75