Finding the Fourth Proportional to 31,499.34, 47,260.49 and 14,640.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,499.34 : 47,260.49 = 14,640.14 : x
2. Step 2: Convert to fraction form
   31,499.34/47,260.49 = 14,640.14/x
3. Step 3: Cross multiply
   31,499.34x = 47,260.49 × 14,640.14
4. Step 4: Simplify right side
   31,499.34x = 691,899,880.57
5. Step 5: Solve for x
   x = 691,899,880.57/31,499.34
6. Step 6: Final answer
   x = 21,965.54