Finding the Fourth Proportional to 12,656.07, 17,464.59 and 7,621.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,656.07 : 17,464.59 = 7,621.92 : x
2. Step 2: Convert to fraction form
   12,656.07/17,464.59 = 7,621.92/x
3. Step 3: Cross multiply
   12,656.07x = 17,464.59 × 7,621.92
4. Step 4: Simplify right side
   12,656.07x = 133,113,707.81
5. Step 5: Solve for x
   x = 133,113,707.81/12,656.07
6. Step 6: Final answer
   x = 10,517.78