Finding the Fourth Proportional to 12,395.72, 17,109.89 and 7,360.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,395.72 : 17,109.89 = 7,360.76 : x
2. Step 2: Convert to fraction form
   12,395.72/17,109.89 = 7,360.76/x
3. Step 3: Cross multiply
   12,395.72x = 17,109.89 × 7,360.76
4. Step 4: Simplify right side
   12,395.72x = 125,941,671.56
5. Step 5: Solve for x
   x = 125,941,671.56/12,395.72
6. Step 6: Final answer
   x = 10,160.10