Finding the Fourth Proportional to 31,109.31, 46,655.34 and 8,614.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,109.31 : 46,655.34 = 8,614.59 : x
2. Step 2: Convert to fraction form
   31,109.31/46,655.34 = 8,614.59/x
3. Step 3: Cross multiply
   31,109.31x = 46,655.34 × 8,614.59
4. Step 4: Simplify right side
   31,109.31x = 401,916,625.41
5. Step 5: Solve for x
   x = 401,916,625.41/31,109.31
6. Step 6: Final answer
   x = 12,919.50