Finding the Fourth Proportional to 31,100.08, 46,641.45 and 8,605.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,100.08 : 46,641.45 = 8,605.34 : x
2. Step 2: Convert to fraction form
   31,100.08/46,641.45 = 8,605.34/x
3. Step 3: Cross multiply
   31,100.08x = 46,641.45 × 8,605.34
4. Step 4: Simplify right side
   31,100.08x = 401,365,535.34
5. Step 5: Solve for x
   x = 401,365,535.34/31,100.08
6. Step 6: Final answer
   x = 12,905.61