Finding the Fourth Proportional to 61,185.32, 84,447.30 and 39,982.76

Step by Step Solution

1. Step 1: Write the proportion equation
   61,185.32 : 84,447.30 = 39,982.76 : x
2. Step 2: Convert to fraction form
   61,185.32/84,447.30 = 39,982.76/x
3. Step 3: Cross multiply
   61,185.32x = 84,447.30 × 39,982.76
4. Step 4: Simplify right side
   61,185.32x = 3,376,436,128.55
5. Step 5: Solve for x
   x = 3,376,436,128.55/61,185.32
6. Step 6: Final answer
   x = 55,183.76