Finding the Fourth Proportional to 12,774.47, 17,628.89 and 7,108.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,774.47 : 17,628.89 = 7,108.92 : x
2. Step 2: Convert to fraction form
   12,774.47/17,628.89 = 7,108.92/x
3. Step 3: Cross multiply
   12,774.47x = 17,628.89 × 7,108.92
4. Step 4: Simplify right side
   12,774.47x = 125,322,333.15
5. Step 5: Solve for x
   x = 125,322,333.15/12,774.47
6. Step 6: Final answer
   x = 9,810.38