Finding the Fourth Proportional to 52,380.27, 72,288.45 and 31,970.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,380.27 : 72,288.45 = 31,970.09 : x
2. Step 2: Convert to fraction form
   52,380.27/72,288.45 = 31,970.09/x
3. Step 3: Cross multiply
   52,380.27x = 72,288.45 × 31,970.09
4. Step 4: Simplify right side
   52,380.27x = 2,311,068,433.18
5. Step 5: Solve for x
   x = 2,311,068,433.18/52,380.27
6. Step 6: Final answer
   x = 44,120.97