Finding the Fourth Proportional to 31,978.89, 47,960.16 and 9,484.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,978.89 : 47,960.16 = 9,484.32 : x
2. Step 2: Convert to fraction form
   31,978.89/47,960.16 = 9,484.32/x
3. Step 3: Cross multiply
   31,978.89x = 47,960.16 × 9,484.32
4. Step 4: Simplify right side
   31,978.89x = 454,869,504.69
5. Step 5: Solve for x
   x = 454,869,504.69/31,978.89
6. Step 6: Final answer
   x = 14,224.06