Finding the Fourth Proportional to 12,933.78, 17,848.64 and 7,344.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,933.78 : 17,848.64 = 7,344.78 : x
2. Step 2: Convert to fraction form
   12,933.78/17,848.64 = 7,344.78/x
3. Step 3: Cross multiply
   12,933.78x = 17,848.64 × 7,344.78
4. Step 4: Simplify right side
   12,933.78x = 131,094,334.10
5. Step 5: Solve for x
   x = 131,094,334.10/12,933.78
6. Step 6: Final answer
   x = 10,135.81