Finding the Fourth Proportional to 12,910.08, 17,814.72 and 7,320

Step by Step Solution

1. Step 1: Write the proportion equation
   12,910.08 : 17,814.72 = 7,320 : x
2. Step 2: Convert to fraction form
   12,910.08/17,814.72 = 7,320/x
3. Step 3: Cross multiply
   12,910.08x = 17,814.72 × 7,320
4. Step 4: Simplify right side
   12,910.08x = 130,403,750.40
5. Step 5: Solve for x
   x = 130,403,750.40/12,910.08
6. Step 6: Final answer
   x = 10,100.93