Finding the Fourth Proportional to 31,981.96, 47,971.86 and 8,607.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,981.96 : 47,971.86 = 8,607.52 : x
2. Step 2: Convert to fraction form
   31,981.96/47,971.86 = 8,607.52/x
3. Step 3: Cross multiply
   31,981.96x = 47,971.86 × 8,607.52
4. Step 4: Simplify right side
   31,981.96x = 412,918,744.39
5. Step 5: Solve for x
   x = 412,918,744.39/31,981.96
6. Step 6: Final answer
   x = 12,910.99