Finding the Fourth Proportional to 31,147.89, 46,707.94 and 8,956.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,147.89 : 46,707.94 = 8,956.22 : x
2. Step 2: Convert to fraction form
   31,147.89/46,707.94 = 8,956.22/x
3. Step 3: Cross multiply
   31,147.89x = 46,707.94 × 8,956.22
4. Step 4: Simplify right side
   31,147.89x = 418,326,626.77
5. Step 5: Solve for x
   x = 418,326,626.77/31,147.89
6. Step 6: Final answer
   x = 13,430.34