Finding the Fourth Proportional to 52,311.67, 72,184.71 and 31,086.85

Step by Step Solution

1. Step 1: Write the proportion equation
   52,311.67 : 72,184.71 = 31,086.85 : x
2. Step 2: Convert to fraction form
   52,311.67/72,184.71 = 31,086.85/x
3. Step 3: Cross multiply
   52,311.67x = 72,184.71 × 31,086.85
4. Step 4: Simplify right side
   52,311.67x = 2,243,995,252.06
5. Step 5: Solve for x
   x = 2,243,995,252.06/52,311.67
6. Step 6: Final answer
   x = 42,896.65