Finding the Fourth Proportional to 12,972.30, 17,901.84 and 7,383.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,972.30 : 17,901.84 = 7,383.30 : x
2. Step 2: Convert to fraction form
   12,972.30/17,901.84 = 7,383.30/x
3. Step 3: Cross multiply
   12,972.30x = 17,901.84 × 7,383.30
4. Step 4: Simplify right side
   12,972.30x = 132,174,655.27
5. Step 5: Solve for x
   x = 132,174,655.27/12,972.30
6. Step 6: Final answer
   x = 10,188.99