Finding the Fourth Proportional to 31,410.01, 47,107.72 and 9,217.43

Step by Step Solution

1. Step 1: Write the proportion equation
   31,410.01 : 47,107.72 = 9,217.43 : x
2. Step 2: Convert to fraction form
   31,410.01/47,107.72 = 9,217.43/x
3. Step 3: Cross multiply
   31,410.01x = 47,107.72 × 9,217.43
4. Step 4: Simplify right side
   31,410.01x = 434,212,111.56
5. Step 5: Solve for x
   x = 434,212,111.56/31,410.01
6. Step 6: Final answer
   x = 13,824.00