Finding the Fourth Proportional to 12,381.40, 17,083.32 and 7,536.11

Step by Step Solution

1. Step 1: Write the proportion equation
   12,381.40 : 17,083.32 = 7,536.11 : x
2. Step 2: Convert to fraction form
   12,381.40/17,083.32 = 7,536.11/x
3. Step 3: Cross multiply
   12,381.40x = 17,083.32 × 7,536.11
4. Step 4: Simplify right side
   12,381.40x = 128,741,778.69
5. Step 5: Solve for x
   x = 128,741,778.69/12,381.40
6. Step 6: Final answer
   x = 10,398.00