Finding the Fourth Proportional to 9,372.14, 12,933.15 and 5,123.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,372.14 : 12,933.15 = 5,123.12 : x
2. Step 2: Convert to fraction form
   9,372.14/12,933.15 = 5,123.12/x
3. Step 3: Cross multiply
   9,372.14x = 12,933.15 × 5,123.12
4. Step 4: Simplify right side
   9,372.14x = 66,258,079.43
5. Step 5: Solve for x
   x = 66,258,079.43/9,372.14
6. Step 6: Final answer
   x = 7,069.69