Finding the Fourth Proportional to 8,656.83, 11,942.15 and 5,426.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,656.83 : 11,942.15 = 5,426.07 : x
2. Step 2: Convert to fraction form
   8,656.83/11,942.15 = 5,426.07/x
3. Step 3: Cross multiply
   8,656.83x = 11,942.15 × 5,426.07
4. Step 4: Simplify right side
   8,656.83x = 64,798,869.94
5. Step 5: Solve for x
   x = 64,798,869.94/8,656.83
6. Step 6: Final answer
   x = 7,485.29