Finding the Fourth Proportional to 52,699.24, 72,717.78 and 31,474

Step by Step Solution

1. Step 1: Write the proportion equation
   52,699.24 : 72,717.78 = 31,474 : x
2. Step 2: Convert to fraction form
   52,699.24/72,717.78 = 31,474/x
3. Step 3: Cross multiply
   52,699.24x = 72,717.78 × 31,474
4. Step 4: Simplify right side
   52,699.24x = 2,288,719,407.72
5. Step 5: Solve for x
   x = 2,288,719,407.72/52,699.24
6. Step 6: Final answer
   x = 43,429.84