Finding the Fourth Proportional to 31,530.42, 47,300.18 and 10,463.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,530.42 : 47,300.18 = 10,463.31 : x
2. Step 2: Convert to fraction form
   31,530.42/47,300.18 = 10,463.31/x
3. Step 3: Cross multiply
   31,530.42x = 47,300.18 × 10,463.31
4. Step 4: Simplify right side
   31,530.42x = 494,916,394.08
5. Step 5: Solve for x
   x = 494,916,394.08/31,530.42
6. Step 6: Final answer
   x = 15,696.47