Finding the Fourth Proportional to 12,961.92, 17,887.86 and 7,373.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,961.92 : 17,887.86 = 7,373.28 : x
2. Step 2: Convert to fraction form
   12,961.92/17,887.86 = 7,373.28/x
3. Step 3: Cross multiply
   12,961.92x = 17,887.86 × 7,373.28
4. Step 4: Simplify right side
   12,961.92x = 131,892,200.38
5. Step 5: Solve for x
   x = 131,892,200.38/12,961.92
6. Step 6: Final answer
   x = 10,175.36