Finding the Fourth Proportional to 31,308.56, 46,954.49 and 8,817.90

Step by Step Solution

1. Step 1: Write the proportion equation
   31,308.56 : 46,954.49 = 8,817.90 : x
2. Step 2: Convert to fraction form
   31,308.56/46,954.49 = 8,817.90/x
3. Step 3: Cross multiply
   31,308.56x = 46,954.49 × 8,817.90
4. Step 4: Simplify right side
   31,308.56x = 414,039,777.20
5. Step 5: Solve for x
   x = 414,039,777.20/31,308.56
6. Step 6: Final answer
   x = 13,224.49